CN112584219A - Video playing method and device and computer equipment - Google Patents
Video playing method and device and computer equipment Download PDFInfo
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- CN112584219A CN112584219A CN201910935265.3A CN201910935265A CN112584219A CN 112584219 A CN112584219 A CN 112584219A CN 201910935265 A CN201910935265 A CN 201910935265A CN 112584219 A CN112584219 A CN 112584219A
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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
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
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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
- H04N21/43—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, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
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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
Abstract
The invention discloses a video playing method, which comprises the following steps: receiving a video playing request, and performing split screen initialization on a video playing window to obtain a first split screen and a second split screen; formatting adjustment is respectively carried out on the two video data according to the size of the video playing window to obtain first video playing data and second video playing data; writing video data of first video playing data corresponding to a first split screen area into a first split screen area on an SDL canvas of the video window, and synchronously writing video data of second video playing data corresponding to a second split screen area into a second split screen area on the SDL canvas of the video window; and rendering and displaying the video data on the SDL canvas of the video window. The invention also provides a video playing device, computer equipment and a computer readable storage medium, and the invention can realize the non-connection fitting and synchronous playing of video data of different split screens.
Description
Technical Field
The present invention relates to the field of video playing technologies, and in particular, to a video playing method and apparatus, a computer device, and a computer-readable storage medium.
Background
At present, users often play multiple video files in the same video player for simultaneous viewing or comparison, such as two video files with the same content and different picture quality, or two video files with different content. In the prior art, a plurality of video playing windows are generally established in one video player, and then different video files are respectively rendered to a corresponding video playing window, so that different video files are played in one video player.
Under the condition that a plurality of video playing windows are established in one video player to realize the split-screen playing of a plurality of video files, if a user carries out comparison playing on two videos with the same content and then needs to carry out position adjustment on playing pictures of all the video windows to carry out comparison testing, then each video window needs to be adjusted respectively. However, in such a video split-screen playing mode, when the split-screen size in the player is adjusted, the split-screen playing cannot be synchronized, and the connection between the split screens is not attached enough, which wastes a lot of unnecessary display space.
Disclosure of Invention
In view of the above, the present invention provides a video playing method, an apparatus, a computer device and a computer readable storage medium, which can solve the above-mentioned problems that synchronization cannot be achieved when multiple video data are played in split screens, and the connection between the split screens is not sufficient.
First, to achieve the above object, the present invention provides a video playing method, including:
receiving a video playing request, wherein the video playing request comprises a plurality of video data at least comprising first video data and second video data which are played simultaneously; performing split screen initialization on a video playing window according to the video playing request to obtain a first split screen for playing first video data and a second split screen for playing second video data; formatting adjustment is carried out on the first video data and the second video data according to the size of the video playing window, so that first video playing data and second video playing data are obtained; writing video data of first video playing data corresponding to a first split screen area into the first split screen area on the SDL canvas of the video window, and synchronously writing video data of second video playing data corresponding to a second split screen area into a second split screen area on the SDL canvas of the video window; and rendering and displaying the video data on the SDL canvas of the video window.
Preferably, the initializing the video playing window in a split screen manner according to the video playing request includes: acquiring the number of video data in the video playing request and a split screen mode, wherein the split screen mode is a preset split screen mode for dividing the video playing window into a plurality of corresponding styles; and performing screen splitting initialization on the video playing window according to the number of the video data and the screen splitting mode.
Preferably, the method further comprises: monitoring whether a split screen line between the first split screen and the second split screen in the video playing window moves or not; when the screen splitting line moves, acquiring displacement information of the screen splitting line; and adaptively adjusting the areas of the first split screen and the second split screen and the played video data according to the displacement information.
Preferably, the adaptively adjusting the area ranges of the first split screen and the second split screen and the played video data according to the displacement information includes: adjusting the distribution areas of the first split screen and the second split screen in the video playing window according to the displacement information; writing video data of first video playing data corresponding to the adjusted first split screen area into the adjusted first split screen area on the SDL canvas of the video window, and synchronously writing video data of second video playing data corresponding to the adjusted second split screen area into the adjusted second split screen area on the SDL canvas of the video window; and rendering and displaying the video data on the SDL canvas of the video window.
Preferably, the method further comprises: receiving a regional video amplification request; acquiring the amplification times and the amplification area range in the area video amplification request; and amplifying and displaying the video data in the amplification area range according to the amplification factor.
Preferably, the displaying the video data in the zoom-in area range according to the magnification includes: inquiring regional video data corresponding to the enlarged regional range; amplifying the regional video data according to the amplification factor to obtain amplified video data; and writing the amplified video data into an SDL canvas corresponding to the amplification area range, and then rendering and displaying.
Preferably, when the magnified area range includes video data of a first split screen and video data of a second split screen, the method includes: respectively amplifying the regional video data of the first split screen and the regional video data of the second split screen corresponding to the amplified regional range according to the amplification factor to obtain amplified first video data and amplified second video data; and respectively writing the amplified first video data and the amplified second video data into SDL canvas corresponding to the first split screen and the second split screen in the amplification area range, and then rendering and displaying.
In addition, to achieve the above object, the present invention further provides a video playback apparatus, including:
the device comprises a receiving module, a processing module and a display module, wherein the receiving module is used for receiving a video playing request, and the video playing request comprises the simultaneous playing of a plurality of video data at least comprising first video data and second video data; the initialization module is used for carrying out split screen initialization on a video playing window according to the video playing request to obtain a first split screen for playing first video data and a second split screen for playing second video data; the initialization module is further configured to perform formatting adjustment on the first video data and the second video data respectively according to the size of the video playing window to obtain first video playing data and second video playing data; the writing module is used for writing the video data of the first video playing data corresponding to the first split screen area into the first split screen area on the SDL canvas of the video window, and synchronously writing the video data of the second video playing data corresponding to the second split screen area into the second split screen area on the SDL canvas of the video window; and the rendering module is used for rendering and displaying the video data on the SDL canvas of the video window.
Further, the present invention also provides a computer device, which includes a memory and a processor, where the memory stores a computer program that can run on the processor, and the computer program, when executed by the processor, implements the steps of the video playing method as described above.
Further, to achieve the above object, the present invention also provides a computer-readable storage medium storing a computer program, which is executable by at least one processor to cause the at least one processor to execute the steps of the video playback method as described above.
Compared with the prior art, the video playing method, the video playing device, the computer equipment and the computer readable storage medium provided by the invention can perform split screen initialization on the video playing window after receiving the video playing request, so as to obtain a first split screen for playing the first video data and a second split screen for playing the second video data; then, formatting adjustment is carried out on the first video data and the second video data respectively according to the size of the video playing window, so that first video playing data and second video playing data are obtained; then, writing the video data of the first video playing data corresponding to the first split screen area into the first split screen area on the SDL (simple direct media layer) canvas of the video window, synchronously writing the video data of the second video playing data corresponding to the second split screen area into the second split screen area on the SDL canvas of the video window, and finally rendering and displaying the video data on the SDL canvas of the video window. Through the mode, different video data are written into different areas on the SDL canvas corresponding to the video window and then rendered and played, so that the video data of different split screens are attached without connection, and are played synchronously.
Drawings
FIG. 1 is a schematic diagram of an application environment of an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a video playing method according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a specific embodiment of the process of initializing the video playing window in a split screen manner according to the video playing request in step S202 in fig. 2;
FIG. 4 is a schematic flow chart based on the first embodiment of FIG. 2;
FIG. 5 is a flowchart illustrating an embodiment of a process of step S404 in FIG. 4;
FIG. 6 is a schematic flow chart based on the second embodiment of FIG. 2;
FIG. 7 is a flowchart illustrating an embodiment of the implementation process of step S604 in FIG. 6;
fig. 8 is a flowchart illustrating an embodiment of the enlarged region range including the video data of the first split screen and the video data of the second split screen in step S700 in fig. 7;
FIG. 9 is a diagram of an alternative hardware architecture for the computer device of the present invention;
FIG. 10 is a block diagram of a video playback device according to an embodiment of the present invention;
FIG. 11 is a diagram illustrating the effects of the split screen line shift performed in one embodiment of the present invention;
fig. 12 is a diagram illustrating the effect of performing the split screen line shift according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. 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 the description relating to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. 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.
Fig. 1 is a schematic diagram of an application environment according to an embodiment of the present invention. Referring to fig. 1, the computer device 1 is connected to a video server 2, and acquires video data from the game server 2. The computer device 1 provides a video display interface, the video display interface includes a video playing window and an operation icon such as a button, and a user can interact with the computer device 1 by clicking or touching the video playing window or the operation icon on the video display interface or by a voice control command or the like.
Of course, in other embodiments, if the computer device 1 stores video data, the video server 2 shown in fig. 1 may be omitted. The computer device 1 may retrieve the video data directly from itself or from an additional storage unit.
Fig. 2 is a flowchart illustrating a video playing method according to an embodiment of the present invention. It is to be understood that the flow charts in the embodiments of the present method are not intended to limit the order in which the steps are performed. The following description is made by taking a computer device as an execution subject.
As shown in fig. 2, the video playing method may include steps S200 to S208, where:
step S200, receiving a video playing request, where the video playing request includes simultaneously playing a plurality of video data including at least first video data and second video data.
Specifically, the computer device 1 interacts with a user by providing a video display interface, where the video display interface includes a video playing window and an operation icon such as a button, and a user may click or touch the video playing window or the operation icon on the video display interface, or interact with the computer device 1 by a voice control command or the like, for example, send a video playing request to the computer device 1. Therefore, the computer device 1 can receive a video playing request sent by a user through the video display interface.
Of course, in other embodiments, the user may also connect to the computer device 1 through another user terminal, such as a mobile phone, a portable device, a PC, and the like, and then send a video playing request to the computer device 1 through the another user terminal, which is not limited herein.
Step S202, performing split screen initialization on a video playing window according to the video playing request to obtain a first split screen for playing first video data and a second split screen for playing second video data.
As shown in fig. 3, in an exemplary embodiment, the process of initializing the video playing window in a split screen manner according to the video playing request in step S202 includes steps S300 to S302:
step S300, acquiring the number of video data in the video playing request and a split screen mode, wherein the split screen mode is a preset split screen mode for dividing the video playing window into a plurality of corresponding styles.
Step S302, performing screen-splitting initialization on the video playing window according to the number of the video data and the screen-splitting mode.
Specifically, after the computer device 1 receives a video playing request sent by a user, the number of videos in the video playing request and a split screen mode may be obtained. In this embodiment, the computer device 1 is preset with a split screen mode for video playing, for example, when two pieces of video data are played simultaneously, a 1 × 2 average screen mode may be selected, that is, a split screen line is set to divide a video playing window of the video player into two split screens of the same size arranged left and right; or 2 × 1 screen sharing mode, that is, the video playing window of the video player is divided into two screens with the same size arranged up and down by setting screen sharing lines. Of course, if multiple pieces of video data are played simultaneously, the video playing window of the video player may be divided into M × N split screens of the same size (or different sizes) in an M × N manner to play the video data. After the computer device 1 divides the video playing window, further performing initialization, for example, loading a process for video playing, and preparing a video data cache space, etc.
Step S204, formatting adjustment is respectively carried out on the first video data and the second video data according to the size of the video playing window, so as to obtain first video playing data and second video playing data.
Specifically, after the computer device 1 performs screen splitting and initialization on the video playing window according to the video playing request, then, the computer device 1 performs formatting adjustment on the first video data and the second video data to be played corresponding to the video playing request. In this embodiment, the computer device 1 performs size adjustment on all video frames in the first video data and the second video data according to the size of the video playing window to be the same as the size of the video playing window; in addition, the computer device 1 also adaptively adjusts the first video data and the second video data according to the resolution of the video playing window; and finally obtaining the corresponding first video playing data and the second video playing data through a series of formatting adjustment.
Step S206, writing the video data of the first video playing data corresponding to the first split screen area into the first split screen area on the SDL canvas of the video window, and synchronously writing the video data of the second video playing data corresponding to the second split screen area into the second split screen area on the SDL canvas of the video window.
And step S208, rendering and displaying the video data on the SDL canvas of the video window.
Specifically, after the computer device 1 obtains the first video playing data and the second video playing data through formatting adjustment, then, the video data of the first video playing data corresponding to the first split screen area is written into the first split screen area on the SDL canvas of the video window, the video data of the second video playing data corresponding to the second split screen area is synchronously written into the second split screen area on the SDL canvas of the video window, and then the video data on the whole SDL canvas is rendered to the video playing window.
In this embodiment, the SDL is a set of cross-platform multimedia development libraries with open source codes, and is written in C language, so that the SDL provides several functions for controlling image, sound, and input and output, and can simply and quickly implement rendering and displaying of video data. Therefore, the computer device 1 adopts the SDL technology to establish the video playing window in advance, then performs region division on the canvas, and performs video data rendering, so that split-screen in the video playing window can be realized, and the split-screen line divides the video playing window into the first split-screen and the second split-screen in a linear manner, thereby greatly reducing the non-playing region range in the video playing window.
Referring to fig. 4, in an exemplary embodiment, the video playing method provided by the present invention may include, in addition to the above steps S200 to S208, steps S400 to 404:
step S400, monitoring whether a split screen line between the first split screen and the second split screen in the video playing window moves or not.
Step S402, when the screen dividing line moves, obtaining the displacement information of the screen dividing line.
Specifically, the computer device 1 performs area division on the SDL canvas and then renders the first video data and the second video data, thereby achieving an effect that a first split screen and a second split screen in the video playing window respectively play the first video data and the second video data. In this embodiment, the computer device 1 may further mark and lock a split line reflecting a split line between different video data on the canvas to the video playing window, so that the split line may be moved in a dragging manner on the video playing window interface.
Therefore, when a user watches the first video data and the second video data which are played in a split screen mode in the video playing window, the user can also adjust the area ranges of the first split screen and the second split screen by dragging the split screen lines. In this embodiment, the computer device 1 monitors whether a split screen line in the video playing window moves in real time; when the screen splitting line is monitored to move, the displacement information of the screen splitting line can be further acquired. For example, when the computer device 1 detects that the split-screen line is dragged to another location, the computer device 1 calculates displacement information of the split-screen line, such as a leftward shift by X units of distance or a rightward shift by Y units of distance.
And S404, adaptively adjusting the areas of the first split screen and the second split screen and the played video data according to the displacement information.
As shown in fig. 5, in an exemplary embodiment, the implementation process of step S404 may include steps S500 to S504:
step S500, adjusting the distribution area of the first split screen and the second split screen in the video playing window according to the displacement information.
Step S502, writing the video data of the first video playing data corresponding to the adjusted first split screen area into the adjusted first split screen area on the SDL canvas of the video window, and synchronously writing the video data of the second video playing data corresponding to the adjusted second split screen area into the adjusted second split screen area on the SDL canvas of the video window.
And step S504, rendering and displaying the video data on the SDL canvas of the video window.
Specifically, after the computer device 1 acquires the displacement information of the split screen line, the first split screen area and the second split screen area on the SDL canvas corresponding to the video window are further adaptively adjusted according to the displacement information. In this embodiment, since the SDL canvas has two video data written therein, a boundary between the two video data divides the SDL canvas into a first split screen area and a second split screen area; therefore, after the computer device 1 acquires the displacement information of the movement of the split screen line, the boundary on the SDL canvas is adaptively moved according to the displacement information, so as to achieve the purpose of adaptively adjusting the distribution areas of the first split screen and the second split screen in the video playing window.
Then, the computer device 1 writes the video data of the first video playing data corresponding to the adjusted first split screen area into the adjusted first split screen area on the SDL canvas of the video window, writes the video data of the second video playing data corresponding to the adjusted second split screen area into the adjusted second split screen area on the SDL canvas of the video window synchronously, and renders and displays the data of the SDL canvas of the video window, thereby realizing the synchronous movement of video display with the moving process sent by the split screen line.
Referring to fig. 11 and 12, in fig. 11, two video data of the same contents are played, wherein only a left portion of the contents is played in a first split screen on the left and only a right portion of the contents is played in a second split screen on the right. After the split screen line between the first split screen and the second split screen is dragged, as shown in fig. 12, the area of the left part of the content played in the first split screen on the left is adaptively expanded, and the area of only the right part of the content played in the second split screen on the right is adaptively compressed, but the first split screen and the second split screen are still closely fitted together and continue to be played synchronously.
Referring to fig. 6, in an exemplary embodiment, the video playing method provided by the present invention may further include steps S600 to S604, in addition to the steps S200 to S208 described above:
in step S600, a request for enlarging the area video is received.
Step S602, obtaining the magnification factor and the magnification area range in the area video magnification request.
Specifically, when a user watches a video picture played by the video playing window, and needs to enlarge and watch the video picture, the user can select the video picture in the video playing window by frames and then execute an enlarging operation. Therefore, the computer device 1 can monitor the video frame of the video playing window and receive the area video amplification request of the user for the video playing frame. Then, the computer device 1 further acquires the magnification and the magnified area range in the area magnification request.
In this embodiment, for example, when a user selects a rectangular area video screen to perform zooming-in, for example, zooming-in or zooming-out is controlled by scrolling a mouse wheel up and down, or zooming in or zooming out is clicked after the area is selected, so as to trigger an area video zooming-in request, then, after monitoring and receiving the area video zooming-in request, the computer device 1 can obtain a rectangular area range, such as a rectangle R (x, y, w, h), where x and y are coordinate points where the upper left corner of the rectangle is located, w is the width of the rectangle, and h is the height of the rectangle, so that it can uniquely determine that one rectangular area is the zoomed-in area range. Then, the computer device 1 uses the magnification factor in the magnification operation clicked by the user, for example, 2 times or 0.5 times, as the magnification factor in the area video magnification request.
And step S604, amplifying and displaying the video data in the amplification area range according to the amplification factor.
As shown in fig. 7, in an exemplary embodiment, the implementation process of step S604 may include steps S700 to S704:
step S700, inquiring the area video data corresponding to the enlarged area range.
And S702, amplifying the regional video data according to the amplification factor to obtain amplified video data.
Step S704, writing the amplified video data into the SDL canvas corresponding to the amplification area range, and then performing rendering display.
Specifically, after obtaining the enlargement area range in the area video enlargement request, the computer device 1 further queries area video data corresponding to the enlargement area range. Since the areas in the video window all have a mutual corresponding relation with the specific video data written on the SDL canvas, the area video data corresponding to the enlarged area range can be inquired. Then, the computer device 1 adaptively amplifies the area video data according to the amplification factor to obtain amplified video data. And finally, writing the amplified video data into the SDL canvas corresponding to the amplification area range, and then performing rendering display, thereby realizing the real-time amplification effect of playing the video data.
Referring to fig. 8, in an exemplary embodiment, when the magnified area range includes the video data of the first split screen and the video data of the second split screen in step S700 in fig. 7, the video playing method may further include steps S800 to S802:
step S800, respectively amplifying the area video data of the first split screen and the area video data of the second split screen corresponding to the amplification area range according to the amplification times to obtain amplified first video data and amplified second video data.
Step S802, writing the amplified first video data and the amplified second video data on the SDL canvas corresponding to the first split screen and the second split screen in the amplification area range, respectively, and then performing rendering display.
As can be seen from the above, the video playing method provided in this embodiment can perform split screen initialization on a video playing window after receiving a video playing request, so as to obtain a first split screen for playing first video data and a second split screen for playing second video data; then, formatting adjustment is carried out on the first video data and the second video data respectively according to the size of the video playing window, so that first video playing data and second video playing data are obtained; and then, writing the video data of the first video playing data corresponding to the first split screen area into the first split screen area on the SDL canvas of the video window, synchronously writing the video data of the second video playing data corresponding to the second split screen area into the second split screen area on the SDL canvas of the video window, and finally rendering and displaying the video data on the SDL canvas of the video window. Through the mode, different video data are written into different areas on the SDL canvas corresponding to the video window and then rendered and played, so that the video data of different split screens are attached without connection, and are played synchronously.
In addition, the present invention also provides a computer device, which is shown in fig. 9 and is a schematic diagram of an optional hardware architecture of the computer device of the present invention.
In this embodiment, the computer device 1 may include, but is not limited to, a memory 11, a processor 12, and a network interface 13, which may be communicatively connected to each other through a system bus. The computer device 1 is connected to a network (not shown in fig. 9) through a network interface 13, and is connected to a User Terminal such as a Mobile Terminal (Mobile Terminal), a User Equipment (UE), a Mobile phone (handset), a portable device (portable Equipment), a PC Terminal, a game server, and the like (not shown in fig. 9) through the network for data interaction. The network may be a wireless or wired network such as an Intranet (Intranet), the Internet (Internet), a Global System of Mobile communication (GSM), Wideband Code Division Multiple Access (WCDMA), a 4G network, a 5G network, Bluetooth (Bluetooth), Wi-Fi, or a communication network.
It is noted that fig. 9 only shows the computer device 1 with components 11-13, but it is to be understood that not all shown components are required to be implemented, and that more or less components may be implemented instead.
The memory 11 includes at least one type of readable storage medium, which includes a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a Read Only Memory (ROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a Programmable Read Only Memory (PROM), a magnetic memory, a magnetic disk, an optical disk, etc. In some embodiments, the storage 11 may be an internal storage unit of the computer device 1, such as a hard disk or a memory of the computer device 1. In other embodiments, the memory 11 may also be an external storage device of the computer device 1, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like provided in the computer device 1. Of course, the memory 11 may also comprise both an internal storage unit of the computer device 1 and an external storage device thereof. In this embodiment, the memory 11 is generally used for storing an operating system installed in the computer device 1 and various types of application software, such as program codes of the barrier application, program codes of the video playing apparatus 200, and the like. Furthermore, the memory 11 may also be used to temporarily store various types of data that have been output or are to be output.
The processor 12 may be a Central Processing Unit (CPU), controller, microcontroller, microprocessor, or other data Processing chip in some embodiments. The processor 12 is generally used for controlling the overall operation of the computer device 1, such as performing data interaction or communication related control and processing. In this embodiment, the processor 12 is configured to run the program code stored in the memory 11 or process data, for example, run an application program of the video playing apparatus 200, which is not limited herein.
The network interface 13 may comprise a wireless network interface or a wired network interface, and the network interface 13 is generally used for establishing communication connection between the computer device 1 and user terminals such as mobile terminals, user equipment, mobile phones and portable devices, PC terminals, game servers and the like.
In this embodiment, when the video playing device 200 is installed and operated in the computer device 1, when the video playing device 200 is operated, the game control request corresponding to the target game sent by the first user terminal can be received, and then forwarded to the second user terminal, and the second user terminal is prompted to confirm; and then receiving confirmation information of the second user terminal, and transferring the game control right of the target game to the first user terminal from the second user terminal when the confirmation information of the second user terminal is agreement, wherein the game control right is preset for game data interaction between the user terminal and a game server corresponding to the target game. Through the mode, the operation authority of the game role is transferred from one user terminal to another user terminal on line in the game process through the online transfer of the game control authority.
The hardware structure and functions of the computer apparatus of the present invention have been described in detail so far. Hereinafter, various embodiments of the present invention will be proposed based on the above-described computer apparatus.
Fig. 10 is a block diagram of a video playback device 200 according to an embodiment of the present invention.
In this embodiment, the video playing apparatus 200 includes a series of computer program instructions stored on the memory 11, and when the computer program instructions are executed by the processor 12, the video playing function of the embodiment of the present invention can be realized. In some embodiments, the video playback device 200 may be divided into one or more modules based on the particular operations implemented by the portions of the computer program instructions. For example, in fig. 10, the video playing apparatus 200 may be divided into a receiving module 201, an initializing module 202, an adjusting module 203, a writing module 204, a rendering module 205, a monitoring module 206, an obtaining module 207, and an enlarging module 208.
Wherein:
the receiving module 201 is configured to receive a video playing request, where the video playing request includes that a plurality of video data including at least first video data and second video data are played simultaneously.
Specifically, the computer device 1 interacts with a user by providing a video display interface, where the video display interface includes a video playing window and an operation icon such as a button, and a user may click or touch the video playing window or the operation icon on the video display interface, or interact with the computer device 1 by a voice control command or the like, for example, send a video playing request to the computer device 1. Therefore, the receiving module 201 can receive a video playing request sent by a user through the video display interface.
Of course, in other embodiments, the user may also connect to the computer device 1 through another user terminal, such as a mobile phone, a portable device, a PC, and the like, and then send a video playing request to the computer device 1 through the another user terminal, which is not limited herein.
The initialization module 202 is configured to perform split screen initialization on a video playing window according to the video playing request, so as to obtain a first split screen for playing first video data and a second split screen for playing second video data.
In this embodiment, the initialization module 202 first obtains the number of video data in the video playing request and a split screen mode, where the split screen mode is a preset split screen mode for dividing the video playing window into multiple split screens in corresponding styles; and then carrying out split screen initialization on the video playing window according to the number of the video data and the split screen mode.
Specifically, after the receiving module 201 receives a video playing request sent by a user, the initializing module 202 may obtain the number of videos in the video playing request and a split screen mode. In this embodiment, the computer device 1 is preset with a split screen mode for video playing, for example, when two pieces of video data are played simultaneously, a 1 × 2 average screen mode may be selected, that is, a split screen line is set to divide a video playing window of the video player into two split screens of the same size arranged left and right; or 2 × 1 screen sharing mode, that is, the video playing window of the video player is divided into two screens with the same size arranged up and down by setting screen sharing lines. Of course, if multiple pieces of video data are played simultaneously, the video playing window of the video player may be divided into M × N split screens of the same size (or different sizes) in an M × N manner to play the video data. Therefore, the initialization module 202 divides the video playing window according to a preset screen division mode, and then performs initialization, such as loading a process for video playing, preparing a video data cache space, and the like.
The adjusting module 203 is configured to perform formatting adjustment on the first video data and the second video data according to the size of the video playing window, so as to obtain first video playing data and second video playing data.
Specifically, after the initialization module 202 performs screen splitting and initialization on the video playing window according to the video playing request, the adjustment module 203 then performs formatting adjustment on the first video data and the second video data to be played corresponding to the video playing request. In this embodiment, the adjusting module 203 adjusts the size of all video frames in the first video data and the second video data according to the size of the video playing window to be the same as the size of the video playing window; in addition, the adjusting module 203 also adaptively adjusts the first video data and the second video data according to the resolution of the video playing window; and finally obtaining the corresponding first video playing data and the second video playing data through a series of formatting adjustment.
The writing module 204 is configured to write the video data of the first video playing data corresponding to the first split screen area into the first split screen area on the SDL canvas of the video window, and write the video data of the second video playing data corresponding to the second split screen area into the second split screen area on the SDL canvas of the video window synchronously.
The rendering module 205 is configured to render and display the video data on the SDL canvas of the video window.
Specifically, after the adjusting module 203 obtains the first video playing data and the second video playing data through formatting adjustment, the writing module 204 writes the video data of the first video playing data corresponding to the first split screen area into the first split screen area on the SDL canvas of the video window, and synchronously writes the video data of the second video playing data corresponding to the second split screen area into the second split screen area on the SDL canvas of the video window, and then the rendering module 205 renders the video data on the entire SDL canvas to the video playing window.
In this embodiment, the SDL is a set of cross-platform multimedia development libraries with open source codes, and is written in C language, so that the SDL provides several functions for controlling image, sound, and input and output, and can simply and quickly implement rendering and displaying of video data. Therefore, the computer device 1 adopts the SDL technology to establish the video playing window in advance, then performs area division on the canvas, and performs video data rendering, so that split-screen in the video playing window can be realized, and the split-screen line divides the video playing window into the first split-screen and the second split-screen in a linear manner, thereby greatly reducing the range of the non-playing area at the position in the video playing window.
The monitoring module 206 is configured to monitor whether a split screen line between the first split screen and the second split screen in the video playing window moves.
The obtaining module 207 is configured to obtain displacement information of the screen splitting line when the screen splitting line moves.
Specifically, the computer device 1 may further mark and lock a split line reflecting a split line between different video data on the canvas to the video playing window, so that the split line may be moved in a dragging manner on the video playing window interface.
Therefore, when a user watches the first video data and the second video data which are played in a split screen mode in the video playing window, the user can also adjust the area ranges of the first split screen and the second split screen by dragging the split screen lines. In this embodiment, the monitoring module 206 monitors whether a split screen line in the video playing window moves in real time; when the monitoring module 206 monitors that the screen splitting line moves, the displacement information of the screen splitting line can be further acquired. For example, when the monitoring module 206 detects that the split-screen line is dragged to another position, the obtaining module 207 calculates displacement information of the split-screen line, such as a leftward shift by X units or a rightward shift by Y units.
The adjusting module 203 is further configured to adaptively adjust the areas of the first split screen and the second split screen and the played video data according to the displacement information. Specifically, the adjusting module 203 adjusts distribution areas of the first split screen and the second split screen in the video playing window according to the displacement information.
The writing module 204 is further configured to write video data of the first video playing data corresponding to the adjusted first split screen area into the adjusted first split screen area on the SDL canvas of the video window, and write video data of the second video playing data corresponding to the adjusted second split screen area into the adjusted second split screen area on the SDL canvas of the video window synchronously.
The rendering module 205 is further configured to render and display the video data on the SDL canvas of the video window.
Specifically, after the obtaining module 207 obtains the displacement information of the screen splitting line, the adjusting module 203 further adaptively adjusts a first screen splitting area and a second screen splitting area on the SDL canvas corresponding to the video window according to the displacement information. In this embodiment, since the SDL canvas has two video data written therein, a boundary between the two video data divides the SDL canvas into a first split screen area and a second split screen area; therefore, after the obtaining module 207 obtains the displacement information of the movement of the split screen line, the adjusting module 203 adaptively moves the boundary line on the SDL canvas according to the displacement information, so as to achieve the purpose of adaptively adjusting the distribution areas of the first split screen and the second split screen in the video playing window.
Then, the writing module 204 writes the video data of the first video playing data corresponding to the adjusted first split screen area into the adjusted first split screen area on the SDL canvas of the video window, and synchronously writes the video data of the second video playing data corresponding to the adjusted second split screen area into the adjusted second split screen area on the SDL canvas of the video window. Finally, the rendering module 205 performs rendering display on the data of the SDL canvas of the video window, so as to implement synchronous movement of video display with the moving process sent by the split screen line.
Referring to fig. 11 and 12, in fig. 11, two video data of the same contents are played, wherein only a left portion of the contents is played in a first split screen on the left and only a right portion of the contents is played in a second split screen on the right. After the split screen line between the first split screen and the second split screen is dragged, as shown in fig. 12, the area of the left part of the content played in the first split screen on the left is adaptively expanded, and the area of only the right part of the content played in the second split screen on the right is adaptively compressed, but the first split screen and the second split screen are still closely fitted together and continue to be played synchronously.
In another specific embodiment, the receiving module 201 is further configured to receive a regional video amplification request; the obtaining module 207 is configured to obtain the magnification factor and the magnified area range in the area video magnification request.
Specifically, when a user watches a video picture played by the video playing window, and needs to enlarge and watch the video picture, the user can select the video picture in the video playing window by frames and then execute an enlarging operation. Therefore, the receiving module 201 can monitor the video frame of the video playing window and receive the regional video amplification request of the user for the video playing frame. Then, the obtaining module 207 further obtains the magnification factor and the magnified region range in the region magnifying request.
In this embodiment, for example, when a user selects a rectangular area video screen to perform zooming-in, for example, the user controls zooming-in or zooming-out by scrolling up and down with a mouse wheel, or clicks zooming-in or zooming-out after selecting an area, so as to trigger an area video zooming-in request, then, after monitoring and receiving the area video zooming-in request, the receiving module 201 can obtain a rectangular area range, such as a rectangle R (x, y, w, h), where x and y are coordinate points where the upper left corner of the rectangle is located, w is the width of the rectangle, and h is the height of the rectangle, so that it can uniquely determine a rectangular area as the zoomed-in area range. Then, the obtaining module 207 uses the magnification factor, such as 2 times or 0.5 times, in the zoom-in operation clicked by the user as the magnification factor in the area video zoom-in request.
The enlarging module 208 is configured to enlarge and display the video data within the enlarged region range according to the enlargement factor.
In this embodiment, the amplification module 208 first queries the area video data corresponding to the amplified area range, and then amplifies the area video data according to the amplification factor to obtain amplified video data. Then, the writing module 204 writes the enlarged video data onto the SDL canvas corresponding to the enlargement area range, and finally, the rendering module 205 performs rendering display again.
Specifically, after the obtaining module 207 obtains the enlarged area range in the area video enlargement request, it further queries the area video data corresponding to the enlarged area range. Since the areas in the video window all have a corresponding relationship with the specific video data written on the SDL canvas, the enlargement module 208 may query the area video data corresponding to the enlargement area range; then, the amplification module 208 adaptively amplifies the video data of the region according to the amplification factor to obtain amplified video data. Finally, the writing module 204 writes the amplified video data into the SDL canvas corresponding to the amplification area range, and then the rendering module 205 performs rendering display, thereby realizing a real-time amplification effect of playing the video data.
In addition, when the magnified area range includes the video data of the first split screen and the video data of the second split screen, the magnification module 208 magnifies the video data of the first split screen and the video data of the second split screen corresponding to the magnified area range according to the magnification factor, so as to obtain the magnified first video data and the magnified second video data. Then, the writing module 204 writes the enlarged first video data and the enlarged second video data onto the SDL canvas corresponding to the first split screen and the second split screen in the enlargement area range, respectively. Finally, the rendering module 205 performs rendering display.
As can be seen from the above, the computer device 1 can perform split screen initialization on a video playing window after receiving a video playing request, so as to obtain a first split screen for playing first video data and a second split screen for playing second video data; then, formatting adjustment is carried out on the first video data and the second video data respectively according to the size of the video playing window, so that first video playing data and second video playing data are obtained; and then, writing the video data of the first video playing data corresponding to the first split screen area into the first split screen area on the SDL canvas of the video window, synchronously writing the video data of the second video playing data corresponding to the second split screen area into the second split screen area on the SDL canvas of the video window, and finally rendering and displaying the video data on the SDL canvas of the video window. Through the mode, different video data are written into different areas on the SDL canvas corresponding to the video window and then rendered and played, so that the video data of different split screens are attached without connection, and are played synchronously.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A video playback method, the method comprising:
receiving a video playing request, wherein the video playing request comprises a plurality of video data at least comprising first video data and second video data which are played simultaneously;
performing split screen initialization on a video playing window according to the video playing request to obtain a first split screen for playing first video data and a second split screen for playing second video data;
formatting adjustment is carried out on the first video data and the second video data according to the size of the video playing window, so that first video playing data and second video playing data are obtained;
writing video data of first video playing data corresponding to a first split screen area into the first split screen area on the SDL canvas of the video window, and synchronously writing video data of second video playing data corresponding to a second split screen area into a second split screen area on the SDL canvas of the video window;
and rendering and displaying the video data on the SDL canvas of the video window.
2. The video playing method according to claim 1, wherein the initializing the video playing window in a split screen manner according to the video playing request comprises:
acquiring the number of video data in the video playing request and a split screen mode, wherein the split screen mode is a preset split screen mode for dividing the video playing window into a plurality of corresponding styles;
and performing screen splitting initialization on the video playing window according to the number of the video data and the screen splitting mode.
3. The video playback method of claim 1, wherein the method further comprises:
monitoring whether a split screen line between the first split screen and the second split screen in the video playing window moves or not;
when the screen splitting line moves, acquiring displacement information of the screen splitting line;
and adaptively adjusting the areas of the first split screen and the second split screen and the played video data according to the displacement information.
4. The video playing method according to claim 3, wherein said adaptively adjusting the area ranges of the first split screen and the second split screen and the played video data according to the displacement information comprises:
adjusting the distribution areas of the first split screen and the second split screen in the video playing window according to the displacement information;
writing video data of first video playing data corresponding to the adjusted first split screen area into the adjusted first split screen area on the SDL canvas of the video window, and synchronously writing video data of second video playing data corresponding to the adjusted second split screen area into the adjusted second split screen area on the SDL canvas of the video window;
and rendering and displaying the video data on the SDL canvas of the video window.
5. The method of claim 1, wherein the method further comprises:
receiving a regional video amplification request;
acquiring the amplification times and the amplification area range in the area video amplification request;
and amplifying and displaying the video data in the amplification area range according to the amplification factor.
6. The video playback method according to claim 5, wherein the displaying the video data in the zoom-in area according to the magnification includes:
inquiring regional video data corresponding to the enlarged regional range;
amplifying the regional video data according to the amplification factor to obtain amplified video data;
and writing the amplified video data into an SDL canvas corresponding to the amplification area range, and then rendering and displaying.
7. The video playback method according to claim 6, wherein when the enlarged area range includes video data of a first split screen and video data of a second split screen, the method comprises:
respectively amplifying the regional video data of the first split screen and the regional video data of the second split screen corresponding to the amplified regional range according to the amplification factor to obtain amplified first video data and amplified second video data;
and respectively writing the amplified first video data and the amplified second video data into SDL canvas corresponding to the first split screen and the second split screen in the amplification area range, and then rendering and displaying.
8. A video playback apparatus, comprising:
the device comprises a receiving module, a processing module and a display module, wherein the receiving module is used for receiving a video playing request, and the video playing request comprises the simultaneous playing of a plurality of video data at least comprising first video data and second video data;
the initialization module is used for carrying out split screen initialization on a video playing window according to the video playing request to obtain a first split screen for playing first video data and a second split screen for playing second video data;
the initialization module is further configured to perform formatting adjustment on the first video data and the second video data respectively according to the size of the video playing window to obtain first video playing data and second video playing data;
the writing module is used for writing the video data of the first video playing data corresponding to the first split screen area into the first split screen area on the SDL canvas of the video window, and synchronously writing the video data of the second video playing data corresponding to the second split screen area into the second split screen area on the SDL canvas of the video window;
and the rendering module is used for rendering and displaying the video data on the SDL canvas of the video window.
9. Computer device, characterized in that it comprises a memory, a processor, said memory having stored thereon a computer program executable on said processor, said computer program, when being executed by said processor, implementing the steps of the video playback method according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which is executable by at least one processor to cause the at least one processor to perform the steps of the video playback method according to any one of claims 1-7.
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