CN110784774A - Video window moving method and device and computer readable storage medium - Google Patents
Video window moving method and device and computer readable storage medium Download PDFInfo
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- H—ELECTRICITY
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- 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
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
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- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
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Abstract
The invention provides a video window moving method, a video window moving device and a computer readable storage medium, wherein the method comprises the following steps: when a dragging instruction of a user to a display page is detected, a dragging distance and a dragging direction carried by the dragging instruction are determined, a target moving distance of a local video window is determined according to the dragging distance and a preset dragging proportion, the local video window is moved according to the target moving distance and the dragging direction, and the moved local video window is displayed in a video call client.
Description
Technical Field
The present invention relates to the field of video communication technologies, and in particular, to a method and an apparatus for moving a video window, and a computer-readable storage medium.
Background
With the development of video networking, remote communication between people becomes more and more convenient, wherein, as one of communication modes, video networking video call also becomes more and more frequent, and the real-time transmission of full-network high-definition video which can not be realized by the internet at present can be realized through the video networking video call, and the high definition is face to face. Finally, world no-distance is realized, and the distance between people in the world is only the distance of one screen.
After entering a video call service of a video network, generally, two video pictures are available, one is a remote video picture and the other is a local video window, the local video window displays the local video picture, the remote video picture can be spread over the whole screen, the local video window can be displayed at any position of four corners and occupies a certain range, for example, the local video window can be displayed at the lower right corner, and the width and height of the local video window can be set to be 33% of the screen respectively. Therefore, a local video window can shield part of the far-end video picture, when important image information exists, the part shielded by the local video window cannot be normally viewed, a method for moving the local video window to avoid the local video window from shielding the far-end video picture exists in the prior art, but in the existing method for moving the local video window, when a large screen is faced, the moving operation of the local video window is inconvenient, and the user experience is poor.
Disclosure of Invention
In view of the above, embodiments of the present invention are proposed to provide a video window moving method, apparatus and computer-readable storage medium that overcome or at least partially solve the above problems.
In order to solve the above problem, an embodiment of the present invention discloses a video window moving method, which is applied to a terminal, wherein a video call client is installed on the terminal, and a local video window is displayed in a display page of the video call client, and the method includes:
when a dragging instruction of a user to the display page is detected, determining a dragging distance and a dragging direction carried by the dragging instruction;
determining the target moving distance of the local video window according to the dragging distance and a preset dragging proportion;
moving a local video window according to the target moving distance and the dragging direction;
and displaying the moved local video window in the video call client.
Optionally, the dragging instruction includes a dragging start point and a dragging end point, and determining a dragging distance and a dragging direction carried by the dragging instruction includes:
detecting the coordinates of the dragging starting point and the dragging ending point;
and determining the dragging distance and the dragging direction according to the coordinates of the dragging starting point and the dragging ending point.
Optionally, after the detecting the coordinates of the dragging start point and the coordinates of the dragging end point, the method further includes:
acquiring the initial position of the local video window;
judging whether the coordinate of the dragging starting point is located in the range of the initial position of the local video window;
and under the condition that the coordinate of the dragging starting point is located in the range of the initial position of the local video window, determining the dragging distance and the dragging direction according to the coordinate of the dragging starting point and the coordinate of the dragging ending point.
Optionally, after the obtaining the initial position of the local video window, the method further includes:
determining the maximum moving distance of the local video window according to the initial position of the local video window and the boundary of the far-end video picture;
comparing the maximum moving distance with the target moving distance;
the moving the local video window according to the target moving distance and the dragging direction comprises:
and under the condition that the target moving distance is smaller than or equal to the maximum moving distance, moving a local video window according to the target moving distance and the dragging direction.
Optionally, after the comparing the maximum moving distance with the target moving distance, the moving the local video window according to the target moving distance and the dragging direction further includes:
and under the condition that the target moving distance is greater than the maximum moving distance, moving a local video window according to the maximum moving distance and the dragging direction.
Optionally, the determining the target moving distance of the local video window according to the dragging distance and the preset dragging ratio includes:
displaying a plurality of preset dragging ratios to a user in a video call client so that the user can select a target dragging ratio from the preset dragging ratios;
acquiring the target dragging proportion selected by a user;
and determining the target moving distance of the local video window according to the target dragging proportion and the dragging distance.
The embodiment of the invention also discloses a video window moving device, which is applied to a terminal, wherein a video call client is installed on the terminal, and a local video window is displayed in a display page of the video call client, and the device comprises:
the first determining module is used for determining a dragging distance and a dragging direction carried by a dragging instruction when the dragging instruction of a user on the display page is detected;
the second determining module is used for determining the target moving distance of the local video window according to the dragging distance and a preset dragging proportion;
the moving module is used for moving the local video window according to the target moving distance and the dragging direction;
and the display module is used for displaying the moved local video window in the video call client.
Optionally, the drag instruction includes a drag start point and a drag end point, and the first determining module includes:
the detection submodule is used for detecting the coordinates of the dragging starting point and the dragging ending point;
and the first determining submodule is used for determining the dragging distance and the dragging direction according to the coordinate of the dragging starting point and the coordinate of the dragging ending point.
Optionally, the apparatus further comprises:
the acquisition module is used for acquiring the initial position of the local video window;
the judging module is used for judging whether the coordinate of the dragging starting point is located in the range of the initial position of the local video window;
and the third determining module is used for determining the dragging distance and the dragging direction according to the coordinate of the dragging starting point and the coordinate of the dragging ending point under the condition that the coordinate of the dragging starting point is located in the range of the initial position of the local video window.
Optionally, the apparatus further comprises:
a fourth determining module, configured to determine a maximum moving distance of the local video window according to the initial position of the local video window and the boundary of the far-end video frame;
the comparison module is used for comparing the maximum moving distance with the target moving distance;
the moving module includes:
and the first moving submodule is used for moving the local video window according to the target moving distance and the dragging direction under the condition that the target moving distance is less than or equal to the maximum moving distance.
Optionally, the mobile module further includes:
and the second moving submodule is used for moving the local video window according to the maximum moving distance and the dragging direction under the condition that the target moving distance is greater than the maximum moving distance.
Optionally, the preset dragging ratio is multiple, and the second determining module includes:
the display sub-module is used for displaying a plurality of preset dragging ratios to a user in the video call client so that the user can select a target dragging ratio from the preset dragging ratios;
the acquisition submodule is used for acquiring the target dragging proportion selected by a user;
and the second determining submodule is used for determining the target moving distance of the local video window according to the target dragging proportion and the dragging distance.
The embodiment of the invention also discloses a video window moving device, which comprises:
one or more processors; and
one or more computer-readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform a video window moving method according to any one of the embodiments of the invention.
The embodiment of the invention also discloses a computer readable storage medium, and a stored computer program enables a processor to execute the video window moving method.
The embodiment of the invention has the following advantages:
in the video window moving method provided by the embodiment of the invention, when a dragging instruction of a user to the display page is detected, a dragging distance and a dragging direction carried by the dragging instruction are determined, a target moving distance of the local video window is determined according to the dragging distance and a preset dragging proportion, the local video window is moved according to the target moving distance and the dragging direction, and the moved local video window is displayed in a video call client. According to the method, the position of the local video window is changed by moving the local video window, the local video window is prevented from blocking a far-end important video picture, meanwhile, due to the fact that the dragging proportion is preset, the fact that the fingers drag a small distance can enable the local video window to move a large distance in the video call client side, when the size of the terminal is large, the fingers can be prevented from moving for a long distance, fatigue or friction is reduced, the local video window is convenient to move, and user experience is improved.
Drawings
Fig. 1A is a display effect diagram of a display page of a video call client on a small-screen terminal according to an embodiment of the present invention;
FIG. 1B is a diagram illustrating a local video window moving on a small-screen terminal according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating steps of a method for moving a video window according to an embodiment of the present invention;
fig. 3A is a schematic diagram of a local video window moving process on a large-screen terminal according to an embodiment of the present invention;
fig. 3B is a schematic diagram of a local video window moving on a large-screen terminal according to an embodiment of the present invention;
FIG. 4 is a block diagram of a video window moving apparatus according to an embodiment of the present invention;
FIG. 5 is a networking schematic of a video network of the present invention;
FIG. 6 is a schematic diagram of a hardware architecture of a node server according to the present invention;
fig. 7 is a schematic diagram of a hardware structure of an access switch of the present invention;
fig. 8 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
With the development of video networking, remote communication between people becomes more and more convenient, wherein video communication of video networking becomes more and more frequent as one of communication modes, and video communication services can be used in scenes such as meeting, training, remote class and the like.
After entering a video call service of a video network, two video pictures are generally available, one is a remote video picture, the other is a local video window, the local video window displays the local video picture, the remote video picture can be paved on the whole screen, the local video window can be displayed at any position of four corners and occupies a certain range, for example, the local video window can be displayed at the lower right corner, the width and the height of the local video window can be set to be respectively 33% of the screen, so that the local video window can shield part of the remote video picture, and when important image information exists, the part shielded by the local video window cannot be normally viewed.
Referring to fig. 1A, fig. 1A is a display effect diagram of a display page of a video call client on a small-screen terminal, after a video call service of a video network is entered, as shown in fig. 1A, a remote video picture 120 and a local video window 110 are displayed on the display page in the video call client, and a number on a human body of one of characters on the remote video picture 120 is blocked by the local video window 110, so that important digital information cannot be normally viewed.
In the related art, there is a scheme of changing the position of the local widget in real time by dragging the local widget with a finger. As shown in fig. 1A and 1B, the operator drags the local video window from a1 to A3 with a finger, and the local video window moves to A3 in real time along with the movement of the operator's finger, so as to change the position of the local small window in real time.
However, due to the particularity of conferences and training scenes, multiple people are usually involved in viewing a video picture at one terminal side, the size of the terminal for performing a video call is relatively large, for example, 43 inches, 60 inches and the like, and due to the large size of the terminal, if a technical scheme that the position of a local video window is changed in real time by dragging the local video window with a finger is also used, the dragging distance of the finger is long, the touch feeling of the finger is affected by long-distance dragging, and the user experience is reduced.
The embodiment of the invention is based on the characteristics of the video network (see the following detailed description about the video network) and the defects of the prior art, and provides one of the core concepts of the invention, which follows the protocol of the video network, when the video call service of the video network is carried out, after the dragging instruction of a user to a local video window is detected, the dragging instruction is responded, the local video window is moved according to the preset dragging proportion, and the moved video picture is displayed in a video call client, so that the problem that the user experience is influenced by the fact that the dragging distance of the local video window dragged on a large screen is long when the current video call service is carried out is solved.
Referring to fig. 2, fig. 2 is a flowchart illustrating steps of a video window moving method according to an embodiment of the present invention, where the method is applied to a terminal, a video call client is installed on the terminal, and a local video window and a remote video screen are displayed in the video call client, and the method specifically includes the following steps:
step S201, when a dragging instruction of the user to the display page is detected, a dragging distance and a dragging direction carried by the dragging instruction are determined.
The video window moving method of the embodiment can be applied to a scene that two terminals carry out video call through a video network or the internet through a video call client. Preferably, the terminal in this embodiment is a large-screen tablet terminal, for example, a 43 inch, 60 inch and other large-screen conference tablet terminals, and in some cases, may also be a small-screen terminal, for example, a mobile phone, a tablet computer and the like.
In this embodiment, when a video call is performed by using the video call client, if a user drags a display page in the video call client, the video call client can detect a dragging instruction of the user to the display page, and after the video call client detects the dragging instruction of the user to the display page, the dragging distance and the dragging direction carried by the dragging instruction are determined. The dragging distance represents the distance between a dragging starting point and a dragging ending point of the finger in the video call client, and the dragging direction represents the direction of the finger in the video call client from the dragging starting point to the dragging ending point.
In this embodiment, the dragging instruction refers to a dragging operation performed by a user on a display page in a video call client, where the dragging operation may be a dragging operation along a straight line or a dragging operation along a curved line, and the period from when the user touches the screen with a finger to when the user leaves the screen is the end of the dragging operation, where the dragging instruction is a dragging instruction, and the leaving of the screen is completed by the dragging instruction.
Step S202, determining the target moving distance of the local video window according to the dragging distance and the preset dragging proportion.
In step S201, after the dragging distance and the dragging direction carried by the dragging instruction have been determined, the video call client may calculate the target moving distance of the local video window according to the dragging distance and a preset dragging ratio. In this embodiment, the preset dragging proportion may be preset according to the terminal size, for example, the preset dragging proportion may be set to X: and Y, wherein X represents the dragging distance carried by the dragging instruction, and Y represents the moving distance of the local video window in the video call client, namely the target moving distance. For example, X: y can be 1:10, 1:5, 1:100, etc.
Illustratively, when X: when Y is 1:10, the finger drags the local video window by 1cm, and the local video window moves by 10cm in the video call client.
And step S203, moving the local video window according to the target moving distance and the dragging direction.
In this embodiment, the video call client moves the local video window in the dragging direction, and the moving distance is the target moving distance.
And step S204, displaying the moved local video window in the video call client.
After the local video window is moved in step S203, the moved local video window may be displayed in the video call client, so that the position of the local video window may be moved, thereby preventing the local video window from blocking the important video picture at the far end. The moving operation of the local video window in this embodiment occurs after the dragging instruction of the user is completed.
Referring to fig. 3A and 3B, fig. 3A is a schematic diagram of a local video window moving process on a large-screen terminal, fig. 3B is a schematic diagram of a local video window on the large-screen terminal after moving, fig. 3A and 3B still show that the local video window is moved from a position a1 to a position A3, and fig. 3A and 3B are different from fig. 1B in that fig. 3A and 3B are operations performed on the large-screen terminal, for example, a 50-inch video networking android tablet, and the above steps are initially described below with a user operating on the video networking android tablet.
In fig. 3B, if the prior art scheme of dragging the local widget with a finger to change the position of the local widget in real time is still used, the operator needs to drag the local video window from a1 to A3 on a 50-inch screen with a finger, which is moved a very long distance. However, with the method of the embodiment of the present application, as shown in fig. 3A, only a finger needs to be dragged from a position a1 to a position a2 in the local video call client, and according to the distance between a1 and a2, in combination with a preset dragging ratio, the target moving distance of the local video window is determined, and the target moving distance represents the distance for moving the local video window from a position a1 to a position A3, that is, with the method of the embodiment of the present application, the local video window only needs to be actually moved from a position a1 to a position a2, so that the local video window can be moved from a position a1 to a position A3, thereby avoiding long-distance dragging of the finger, and improving user experience.
In this embodiment, when the video call client detects a dragging instruction of a user to a local video window, a dragging distance and a dragging direction carried by the dragging instruction are determined, a target moving distance of the local video window is determined according to the dragging distance and a preset dragging ratio, the local video window is moved according to the target moving distance and the dragging direction, and the moved local video window is displayed in the video call client. According to the method, the position of the local video window is changed by moving the local video window, the local video window is prevented from blocking a far-end important video picture, meanwhile, due to the fact that the dragging proportion is preset, the fact that the fingers drag a small distance can enable the local video window to move a large distance in the video call client side, when the size of the terminal is large, the fingers can be prevented from moving for a long distance, fatigue or friction is reduced, the local video window is convenient to move, and user experience is improved.
In this embodiment, the dragging instruction includes a dragging start point and a dragging end point, and the step S501 of determining the dragging distance and the dragging direction carried by the dragging instruction may specifically include the following steps:
in step S2011, the coordinates of the start point and the coordinates of the end point are detected.
Step S2012, determining the dragging distance and the dragging direction according to the coordinates of the dragging start point and the dragging end point.
In this embodiment, a coordinate system is pre-established in the video call client, so that the video call client can detect the coordinates of the dragging start point and the dragging end point of the dragging instruction according to the dragging instruction, and can determine the dragging distance and the dragging direction when the coordinates of the dragging start point and the dragging end point are detected.
In this embodiment, the coordinates of the start point of the drag may be assumed to be (x1, y1), and the coordinates of the end point of the drag may be assumed to be (x2, y2), and therefore, the drag distance d may be determined by the following calculation formula:
wherein d is the dragging distance, x1 is the abscissa of the dragging start point, x2 is the abscissa of the dragging end point, y1 is the ordinate of the dragging start point, and y2 is the ordinate of the dragging start point.
The dragging direction is the direction indicated by the connecting line of the dragging start point and the dragging end point.
In this embodiment, a rectangular coordinate system is established with the pixel as a unit and the upper left corner of the video call client screen as a coordinate (0, 0), for example, the resolution of the current terminal screen is 720 x 1280, the upper left corner of the video call client screen is the coordinate (0, 0), and the lower right corner of the video call client screen is the coordinate (720, 1280).
Still referring to fig. 3A, the drag instruction of the user on the display page is an instruction to drag a finger from a1 to a2, a1 is a drag start point, coordinates are (x1, y1), a2 is a drag end point, coordinates are (x2, y2), a drag distance is a distance between a1 and a2, and the drag direction is a direction in which a1 points to a2, which can be calculated by the above formula.
By executing the steps S2011 to S2012, the dragging distance and the dragging direction are calculated by using the dragging start point coordinate and the dragging end point coordinate, so that the dragging distance and the dragging direction can be conveniently and accurately calculated.
In addition, considering that when the video call client on the terminal performs a video call, a user may touch a display page of the video call client on a screen of the terminal by mistake, that is, the user touches the display page in the screen without wanting to move the local video terminal, and in order to avoid the occurrence of the false touch, after the coordinates of the dragging start point and the dragging end point are detected, the following steps may be specifically performed:
step S20111, the initial position of the local video window is obtained.
Step S20112, determining whether the coordinate of the dragging start point is located within the range of the initial position of the local video window.
Step S20113, when the coordinate of the dragging start point is located within the range of the initial position of the local video window, determining the dragging distance and the dragging direction according to the coordinate of the dragging start point and the coordinate of the dragging end point.
In this embodiment, when the local video window is moved for the first time after the video call client is opened, the initial position of the local video window may be determined by the default local video window initial position of the system, for example, in a normal case, the local video window is displayed in the lower right corner of the display page by default, the position of the local video window is known at this time and is determined by the size of the local video window, and the range surrounded by four edges of the local video window is the local video window initial position. And if the video call client is moved, taking the position of the moved local video call client at the moment as the initial position of the local video window.
The coordinate of the dragging starting point is known, and the initial position of the local video window is also known, so that whether the coordinate of the dragging starting point is located in the range of the initial position of the local video window can be judged, and under the condition that the coordinate of the dragging starting point is located in the range of the initial position of the local video window, the dragging distance and the dragging direction are determined according to the coordinate of the dragging starting point and the coordinate of the dragging end point.
In one embodiment of the present application, after determining whether the coordinate of the dragging start point is located within the range of the initial position of the local video window, another determination result may be obtained, that is, the coordinate of the dragging start point is located outside the range of the initial position of the local video window, which belongs to a false touch to a display page of a video call client at this time, so that the local video window is not moved.
Still referring to FIG. 3A, in FIG. 3A, the user has dragged the screen within the display page of the Web android tablet due to a false touch, at which point the drag starts at B1 and the drag ends at B2. At this time, the video call client can acquire the coordinates of the point B1, and judge that the point B1 is out of the range of the local video window according to the coordinates of the point B1 and the initial position of the local video window, and further judge that the dragging instruction of the display page belongs to a false touch, so that the local video window is not moved.
By executing the steps S20111 to S20113, it can be determined whether the coordinate of the dragging start point is in the initial position of the local video window, so as to determine whether the dragging instruction of the user to the display page belongs to a false touch, determine whether the local video picture is moved, and avoid that the local video window moves to block the far-end video picture due to the false touch of the user.
In addition, considering that the range of the display page of the terminal screen is limited, the calculated target moving distance may be larger than the maximum distance that the local video window can move, and therefore, in order to prevent the target moving distance of the local video window from being larger than the maximum distance that the local video window can move, after the local video window initial position is obtained, the following steps may be performed:
step S20114, determining the maximum moving distance of the local video window according to the initial position of the local video window and the boundary of the far-end video frame.
Step S20115, the maximum moving distance and the target moving distance are compared.
Step S20116, when the target movement distance is less than or equal to the maximum movement distance, moving a local video window according to the target movement distance and the dragging direction.
In this embodiment, the far-end video picture is overlaid on the whole display page, that is, the whole screen, so that the ranges of four sides of the far-end video picture are determined, and therefore, the maximum moving distance of the local video window in each direction on the far-end video picture can be calculated.
In an embodiment of the present application, after comparing the maximum moving distance with the target moving distance, another result may be obtained, that is, the target moving distance is greater than the maximum moving distance, at this time, the following steps may be performed:
step S20116, when the target movement distance is greater than the maximum movement distance, moving the local video window according to the maximum movement distance and the dragging direction.
In this embodiment, the local video window is moved according to the maximum moving distance and the dragging direction. For example, the maximum moving distance is 40cm, the target moving distance is 55cm, and the actual moving distance of the local video window is 40 cm.
By executing the steps S20114 to S20117, the local video window can be ensured to move in the far-end video picture all the time, the integrity of the local video window is ensured, and the video call experience of the user is ensured.
In addition, considering that different users have different habits, some users are used to drag a smaller distance with fingers, some users are used to drag a larger distance with fingers, and the size of the terminal is also different, if the size of the terminal is larger, a smaller preset dragging ratio is set, or the size of the terminal is smaller, but a larger dragging ratio is set, therefore, in order to further improve the user experience, the preset dragging ratio can be multiple, and the step S202 specifically includes the following steps:
step S2021, displaying a plurality of preset dragging ratios to the user in the video call client, so that the user can select a target dragging ratio from the plurality of preset dragging ratios.
Step S2022, acquiring the target dragging ratio selected by the user.
Step S2023, determining a target movement distance of the local video window according to the target dragging ratio and the dragging distance.
In this embodiment, the video call client may display a plurality of preset dragging ratios to the user for selection by the user, the display mode may include a drop-down frame mode, the user may click one preset dragging ratio in the drop-down frame, that is, the target dragging ratio for the current dragging instruction is selected, and after the video call client obtains the target dragging ratio selected by the user, the video call client determines the target moving distance of the local video window according to the target dragging ratio and the dragging distance.
By executing the steps S2021 to S2023, the preset dragging ratio provided by the present embodiment can be selected by the user, and the user can set an appropriate dragging ratio according to the user' S needs, so as to further improve the user experience.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Based on the same technical concept, please refer to fig. 4, fig. 4 shows a video window moving apparatus 400 according to an embodiment of the present invention, which is applied to a terminal, the terminal is installed with a video call client, a local video window is displayed in a display page of the video call client, and the apparatus includes:
a first determining module 401, configured to determine, when a dragging instruction of a user to the display page is detected, a dragging distance and a dragging direction carried by the dragging instruction;
a second determining module 402, configured to determine a target moving distance of the local video window according to the dragging distance and a preset dragging ratio;
a moving module 403, configured to move a local video window according to the target moving distance and the dragging direction;
and a display module 404, configured to display the moved local video window in the video call client.
Optionally, the drag instruction includes a drag start point and a drag end point, and the first determining module includes:
the detection submodule is used for detecting the coordinates of the dragging starting point and the dragging ending point;
and the first determining submodule is used for determining the dragging distance and the dragging direction according to the coordinate of the dragging starting point and the coordinate of the dragging ending point.
Optionally, the apparatus further comprises:
the acquisition module is used for acquiring the initial position of the local video window;
the judging module is used for judging whether the coordinate of the dragging starting point is located in the range of the initial position of the local video window;
and the third determining module is used for determining the dragging distance and the dragging direction according to the coordinate of the dragging starting point and the coordinate of the dragging ending point under the condition that the coordinate of the dragging starting point is located in the range of the initial position of the local video window.
Optionally, the apparatus further comprises:
a fourth determining module, configured to determine a maximum moving distance of the local video window according to the initial position of the local video window and the boundary of the far-end video frame;
the comparison module is used for comparing the maximum moving distance with the target moving distance;
the moving module includes:
and the first moving submodule is used for moving the local video window according to the target moving distance and the dragging direction under the condition that the target moving distance is less than or equal to the maximum moving distance.
Optionally, the mobile module further includes:
and the second moving submodule is used for moving the local video window according to the maximum moving distance and the dragging direction under the condition that the target moving distance is greater than the maximum moving distance.
Optionally, the preset dragging ratio is multiple, and the second determining module includes:
the display sub-module is used for displaying a plurality of preset dragging ratios to a user in the video call client so that the user can select a target dragging ratio from the preset dragging ratios;
the acquisition submodule is used for acquiring the target dragging proportion selected by a user;
and the second determining submodule is used for determining the target moving distance of the local video window according to the target dragging proportion and the dragging distance.
An embodiment of the present invention further provides a video window moving apparatus, including:
one or more processors; and
one or more computer-readable instructions stored thereon which, when executed by the one or more processors, cause the apparatus to perform a video window moving method according to any one of the embodiments of the present invention.
Embodiments of the present invention further provide a computer-readable storage medium storing a computer program for enabling a processor to execute the video window moving method according to the embodiments of the present invention.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The video networking technology used in the present application will be described in detail below.
The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.
The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.
To better understand the embodiments of the present invention, the following description refers to the internet of view:
some of the technologies applied in the video networking are as follows:
network Technology (Network Technology)
Network technology innovation in video networking has improved the traditional Ethernet (Ethernet) to face the potentially huge first video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network Circuit Switching (Circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.
Switching Technology (Switching Technology)
The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.
Server Technology (Server Technology)
The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the moving capability of a video window is irrelevant to flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of video window movement, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.
Storage Technology (Storage Technology)
The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.
Network Security Technology (Network Security Technology)
The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.
Service Innovation Technology (Service Innovation Technology)
The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.
Networking of the video network is as follows:
the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.
As shown in fig. 5, the video network is divided into an access network and a metropolitan network.
The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.
The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.
Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.
The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.
The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.
Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.
The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.
Video networking device classification
1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: server, exchanger (including Ethernet protocol conversion gateway), terminal (including various set-top boxes, code board, memory, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.
1.2 wherein the devices of the access network part can be mainly classified into 3 types: node server, access exchanger (including Ethernet protocol conversion gateway), terminal (including various set-top boxes, coding board, memory, etc.).
The specific hardware structure of each access network device is as follows:
a node server:
as shown in fig. 6, the system mainly includes a network interface module 601, a switching engine module 602, a CPU module 603, and a disk array module 604;
the network interface module 601, the CPU module 603, and the disk array module 604 all enter the switching engine module 602; the switching engine module 602 performs an operation of looking up the address table 605 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of a corresponding packet buffer 606 according to the packet's steering information; if the queue of the packet buffer 606 is nearly full, it is discarded; the switching engine module 602 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 604 mainly implements control over the hard disk, including initialization, read-write, and other operations of the hard disk; the CPU module 603 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 605 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 604.
The access switch:
as shown in fig. 7, the network interface module mainly includes a network interface module (a downlink network interface module 701, an uplink network interface module 702), a switching engine module 703 and a CPU module 704;
wherein, the packet (uplink data) coming from the downlink network interface module 701 enters the packet detection module 705; the packet detection module 705 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 703, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 702 enters the switching engine module 703; the incoming data packet from the CPU module 704 enters the switching engine module 703; the switching engine module 703 performs an operation of looking up the address table 706 on the incoming packet, thereby obtaining the direction information of the packet; if a packet entering the switching engine module 703 goes from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 707 in association with a stream-id; if the queue of the packet buffer 707 is close to full, discard; if the packet entering the switching engine module 703 does not go from the downlink network interface to the uplink network interface, the packet is stored in the queue of the corresponding packet buffer 707 according to the packet steering information; if the queue of the packet buffer 707 is close to full, it is discarded.
The switching engine module 703 polls all packet buffer queues and may include two cases:
if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;
if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.
The rate control module 708 is configured by the CPU module 704 to generate tokens for packet buffer queues going to the upstream network interface for all downstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 704 is mainly responsible for protocol processing with the node server, configuration of the address table 706, and configuration of the code rate control module 708.
Ethernet protocol conversion gateway：
As shown in fig. 8, the apparatus mainly includes a network interface module (a downlink network interface module 801, an uplink network interface module 802), a switch engine module 803, a CPU module 804, a packet detection module 805, a rate control module 808, an address table 806, a packet buffer 807, a MAC adding module 809, and a MAC deleting module 810.
Wherein, the data packet coming from the downlink network interface module 801 enters the packet detection module 805; the packet detection module 805 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deleting module 810 subtracts MAC DA, MAC SA, length or frame type (2byte), and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 801 detects the sending buffer of the port, and if there is a packet, acquires the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MACSA of the ethernet coordination gateway, and the ethernet length or frame type, and sends the packet.
The other modules in the ethernet protocol gateway function similarly to the access switch.
A terminal:
the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.
1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.
2. Video networking packet definition
2.1 Access network packet definition
The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.
As shown in the following table, the data packet of the access network mainly includes the following parts:
| DA | SA | Reserved | Payload | CRC |
wherein:
the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;
the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);
the reserved byte consists of 2 bytes;
the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;
the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.
2.2 metropolitan area network packet definition
The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.
In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.
As shown in the following table, the data packet of the metro network mainly includes the following parts:
| DA | SA | Reserved | label (R) | Payload | CRC |
Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable video window mobile terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable video window mobile terminal device, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable video window mobile terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable video windowing mobile terminal device to cause a series of operational steps to be performed on the computer or other programmable terminal device to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal device provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The video window moving method, the video window moving device and the computer readable storage medium provided by the present invention are described in detail above, and specific examples are applied herein to illustrate the principles and embodiments of the present invention, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A video window moving method is applied to a terminal, a video call client is installed on the terminal, and a local video window is displayed in a display page of the video call client, and the method comprises the following steps:
when a dragging instruction of a user to the display page is detected, determining a dragging distance and a dragging direction carried by the dragging instruction;
determining the target moving distance of the local video window according to the dragging distance and a preset dragging proportion;
moving a local video window according to the target moving distance and the dragging direction;
and displaying the moved local video window in the video call client.
2. The method according to claim 1, wherein the drag instruction comprises a drag start point and a drag end point, and determining the drag distance and the drag direction carried by the drag instruction comprises:
detecting the coordinates of the dragging starting point and the dragging ending point;
and determining the dragging distance and the dragging direction according to the coordinates of the dragging starting point and the dragging ending point.
3. The method according to claim 2, wherein after the detecting the coordinates of the drag start point and the coordinates of the drag end point, the method further comprises:
acquiring the initial position of the local video window;
judging whether the coordinate of the dragging starting point is located in the range of the initial position of the local video window;
and under the condition that the coordinate of the dragging starting point is located in the range of the initial position of the local video window, determining the dragging distance and the dragging direction according to the coordinate of the dragging starting point and the coordinate of the dragging ending point.
4. The method of claim 3, wherein after said obtaining the local video window initial position, the method further comprises:
determining the maximum moving distance of the local video window according to the initial position of the local video window and the boundary of the far-end video picture;
comparing the maximum moving distance with the target moving distance;
the moving the local video window according to the target moving distance and the dragging direction comprises:
and under the condition that the target moving distance is smaller than or equal to the maximum moving distance, moving a local video window according to the target moving distance and the dragging direction.
5. The method of claim 4, wherein after comparing the maximum moving distance with the target moving distance, the moving the local video window according to the target moving distance and the dragging direction further comprises:
and under the condition that the target moving distance is greater than the maximum moving distance, moving a local video window according to the maximum moving distance and the dragging direction.
6. The method according to any one of claims 1 to 5, wherein the preset dragging ratio is plural, and the determining the target moving distance of the local video window according to the dragging distance and the preset dragging ratio comprises:
displaying a plurality of preset dragging ratios to a user in a video call client so that the user can select a target dragging ratio from the preset dragging ratios;
acquiring the target dragging proportion selected by a user;
and determining the target moving distance of the local video window according to the target dragging proportion and the dragging distance.
7. The utility model provides a video window mobile device which characterized in that is applied to the terminal, install the video conversation client on the terminal, local video window has been shown in the display page of video conversation client, the device includes:
the first determining module is used for determining a dragging distance and a dragging direction carried by a dragging instruction when the dragging instruction of a user on the display page is detected;
the second determining module is used for determining the target moving distance of the local video window according to the dragging distance and a preset dragging proportion;
the moving module is used for moving the local video window according to the target moving distance and the dragging direction;
and the display module is used for displaying the moved local video window in the video call client.
8. The apparatus of claim 7, wherein the drag instruction comprises a drag start point and a drag end point, and wherein the first determining module comprises:
the detection submodule is used for detecting the coordinates of the dragging starting point and the dragging ending point;
and the first determining submodule is used for determining the dragging distance and the dragging direction according to the coordinate of the dragging starting point and the coordinate of the dragging ending point.
9. A video window moving apparatus, comprising:
one or more processors; and
one or more computer-readable instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform the video window moving method of any of claims 1-6.
10. A computer-readable storage medium storing a computer program for causing a processor to execute the video window moving method according to any one of claims 1 to 6.
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Application publication date: 20200211 |