CN105578204B - Method and device for displaying multiple video data - Google Patents

Method and device for displaying multiple video data Download PDF

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Publication number
CN105578204B
CN105578204B CN201410542963.4A CN201410542963A CN105578204B CN 105578204 B CN105578204 B CN 105578204B CN 201410542963 A CN201410542963 A CN 201410542963A CN 105578204 B CN105578204 B CN 105578204B
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video data
information
video
display
data
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CN105578204A (en
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朱珂
于宗光
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Hisense Visual Technology Co Ltd
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Hisense Visual Technology Co Ltd
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Priority to PCT/CN2015/072413 priority patent/WO2016058302A1/en
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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

Abstract

The embodiment of the invention provides a method and a device for displaying multiple video data, relates to the technical field of video display, and aims to realize that a display device simultaneously displays video data sent by multiple video terminals, meet the requirement of a user on watching the video data of the multiple video terminals simultaneously, and improve the user experience. The method comprises the following steps: receiving video data sent by n video terminals; wherein n is an integer greater than 1; determining display information of the video data of the n video terminals; and mixing the video data of the n video terminals and the background image data of the display equipment by using preset mixing parameters according to the display information of the video data of the n video terminals to obtain output video data, and displaying the output video data, wherein the background image data refers to the background data used when the display equipment displays the video data. The method and the device are suitable for scenes in which a plurality of videos are displayed on the same display device.

Description

Method and device for displaying multiple video data
Technical Field
The invention relates to the technical field of video display, in particular to a method and a device for displaying multiple video data.
Background
With the rapid development of science and technology, video terminals such as mobile devices, intelligent terminals, multimedia playing terminals and the like are rapidly popularized. To accommodate this development, display devices such as televisions and displays are beginning to support the video playback function of these video terminals. More and more users want to display video information of different video terminals through one display device. Therefore, it is a demand of users to display video data connecting a plurality of video terminals and displaying at least two video terminals through one display device.
In the prior art, a display device may be connected to a plurality of video terminals that need to perform video data display, and first the display device displays video data of one of the plurality of video terminals. Secondly, the display device switches the displayed video content from the video data of the current video terminal to the video data of other non-displayed video terminals according to the requirement of the user. By the method, the display equipment realizes the display of the video data of the plurality of video terminals.
However, according to the above conventional method, although the display device is connected to a plurality of video terminals, the display device can only display video data of one video terminal at a time, and cannot display video data of a plurality of video terminals at the same time, and cannot meet the requirement of watching video data of a plurality of video terminals at the same time, thereby reducing user experience.
Disclosure of Invention
Embodiments of the present invention provide a method and an apparatus for displaying multiple video data, so as to implement that a display device simultaneously displays video data sent by multiple video terminals, meet a requirement that a user watches the video data of the multiple video terminals simultaneously, and improve user experience.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a method for displaying multiple video data, including: receiving video data sent by n video terminals; wherein n is an integer greater than 1; determining display information of the video data of the n video terminals; and mixing the video data of the n video terminals and the background image data of the display equipment by using preset mixing parameters according to the display information of the video data of the n video terminals to obtain output video data, and displaying the output video data, wherein the background image data refers to the background data used when the display equipment displays the video data.
In a second aspect, an embodiment of the present invention provides an apparatus for displaying multiple video data, including: the receiving unit is used for receiving the video data sent by the n video terminals; wherein n is an integer greater than 1; a determination unit configured to determine display information of the video data of the n video terminals; and the processing unit is used for mixing the video data of the n video terminals and the background image data of the display equipment by using preset mixing parameters according to the display information of the video data of the n video terminals determined by the determining unit, acquiring output video data and displaying the output video data, wherein the background image data refers to background data used when the display equipment displays the video data.
The embodiment of the invention provides a method and a device for displaying multiple video data, wherein a display device receives video data sent by n video terminals, determines display information of the video data of the n video terminals, and performs mixing processing on the video data of the n video terminals and background image data of the display device by using preset mixing parameters according to the determined display information of the video data of the n video terminals, so as to obtain output video data and display the output video data. Therefore, after receiving the video data sent by the n video terminals, the display device can determine the display information of the n video data, and mix the n video data into one output video data by using the mixing parameter according to the display information to display the data. Compared with the prior art that the display equipment can only display one video data at a time, the display equipment can simultaneously display the video data sent by the plurality of video terminals through the method, so that the requirement of a user for watching the video data of the plurality of video terminals simultaneously is met, and the user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a method for displaying multiple video data according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating an example of a multi-video data display according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating another method for displaying multiple video data according to an embodiment of the present invention;
FIG. 4 is an exemplary diagram of another multi-video data display provided by an embodiment of the present invention;
FIG. 5 is an exemplary diagram of another multi-video data display provided by an embodiment of the present invention;
FIG. 6 is an exemplary diagram of another multi-video data display provided by an embodiment of the present invention;
FIG. 7 is an exemplary diagram of another multi-video data display provided by an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an apparatus for displaying multiple video data according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another apparatus for displaying multiple video data according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a method for displaying multiple video data, as shown in fig. 1, including:
101. and receiving the video data sent by the n video terminals.
Wherein n is an integer greater than 0.
Specifically, when a user needs to display video data of n video terminals through the display device, the video data are sent to the display device through the n video terminals, and at this time, the display device can receive the video data sent by the n video terminals.
It should be noted that, when the n terminal devices send video data to the display device, the video data may be sent to the display device in a wired manner, and at this time, the n video terminals and the display device are connected by using corresponding data lines through physical interfaces. When the n terminal devices send the video data to the display device, the video data can also be sent to the display device in a wireless mode, and at the moment, wireless connection is established between the n video terminals and the display device. Of course, when the n terminal devices send the video data to the display device, other manners may also be used, and the present invention is not limited to this.
Illustratively, the display device has four receiving interfaces S1-S4, and is connected with four external video devices through the four receiving interfaces. The display device may now acquire video data transmitted by four external video devices S1-S4. And, the internal video receiving device of the display device receives one video data M0, and at this time, the display device receives 5 video data in total.
102. And determining the display information of the video data of the n video terminals.
It should be noted that the number of video data that can be simultaneously displayed by the display device is preset, that is, the maximum value of n is preset. And the display device may preset display information that it displays for each video terminal.
For example, the display device is connected to the video terminal through interfaces, and each interface can be connected to only one terminal device at a time. At this time, the display device may preset display information for each interface, so that when video data is received through the interface, the display device may determine the display information corresponding to the video data according to the interface.
Specifically, the display device may obtain the corresponding display information through a connection interface with each video terminal according to the connection between the display device and the video terminal.
103. And mixing the video data of the n video terminals and the background image data of the display equipment by using preset mixing parameters according to the display information of the video data of the n video terminals to obtain output video data, and displaying the output video data.
Specifically, after determining the display information of the video data of each video terminal, the display device needs to mix each video data with the background image data of the display device when outputting the video data, at this time, the display device reads the video data of n video terminals and the display information corresponding to the video data of n video terminals, and mixes the video data of n video terminals and the background image data by using a preset mixing parameter, thereby obtaining the final output video data to be output, wherein the output video data is data mixed with the background data, and the output video data is displayed.
Further, the display device may perform a Blending process using an Alpha Blending (transparent Blending) manner. Of course, the display device may be mixed in other manners, and the present invention is not limited thereto.
As described above, assuming that the display device performs the Blending process by the Alpha Blending method, and the preset Blending parameter is α, as shown in fig. 2, the video data M0, S1-S4 and the background data are data blended by the Blending parameter α, and the video data M0, S1-S4 are blended with the background image data according to the display information thereof, so as to obtain the output video data, thereby displaying the output video data.
The embodiment of the invention provides a method for displaying multiple video data, wherein a display device receives video data sent by n video terminals, determines display information of the video data of the n video terminals, and performs mixing processing on the video data of the n video terminals and background image data of the display device by using preset mixing parameters according to the determined display information of the video data of the n video terminals, so as to obtain output video data and display the output video data. Therefore, after receiving the video data sent by the n video terminals, the display device can determine the display information of the n video data, and mix the n video data into one output video data by using the mixing parameter according to the display information to display the data. Compared with the prior art that the display equipment can only display one video data at a time, the display equipment can simultaneously display the video data sent by the plurality of video terminals through the method, so that the requirement of a user for watching the video data of the plurality of video terminals simultaneously is met, and the user experience is improved.
An embodiment of the present invention provides a method for displaying multiple video data, as shown in fig. 3, including:
301. the display device receives video data sent by n video terminals.
Specifically, refer to step 101, which is not described herein again.
302. The display device determines the video formats of the n pieces of video data and acquires video information of the video data in the uncompressed video format.
Wherein the video format comprises: uncompressed video format or compressed video format.
Specifically, after the display device receives n pieces of video data, since the input data formats of the video data in the uncompressed video format and the video data in the compressed video format are different, the display device can analyze the input formats of the n pieces of video data, so that the video format of each piece of video data can be determined. And further analyzing the video data in the uncompressed video format, so that the video information in the uncompressed video format can be acquired.
The video information is display-related information of the video data, and may include: size information of video data, display frame rate, and the like.
Further, the determining the video formats of the n pieces of video data and acquiring the video information of the video data in the uncompressed video format includes: analyzing the input formats of the n video data, determining the video formats of the m video data according to the analysis result when the input formats of the m video data are analyzed, and acquiring the video information of the video data in the non-compressed video format in the m video data when the video data in the non-compressed video format in the m video data are analyzed.
Wherein the m video data is at least one video data of the n video data.
Or when the input formats of the f video data are not analyzed, sending an analysis request message carrying the f video data to the service equipment. And receiving configuration information of the f video data sent by the service equipment. Analyzing the input format of the f video data according to the configuration information of the f video data, determining the video format of the f video data according to the analysis result, analyzing the video data of the non-compressed video format in the f video data, and acquiring the video information of the video data of the non-compressed video format in the f video data.
Wherein f is an integer which is more than 0 and not more than n, and the sum of f and m is n.
That is, the display apparatus needs to detect whether the input format of each video data is the stored input format after receiving n video data. If it is detected that m video data of the n video data have the stored input formats, the display device may determine the video formats of the m video data, that is, determine which of the m video data are the video data in the compressed video format and which are the video data in the uncompressed video format. And analyzing the video data in the non-compressed video format in the m video data, thereby obtaining the video information of the video data in the non-compressed video format. If the input format of the f video data is not the input format stored in the display device, the display device cannot analyze the input format of the f video data, and thus cannot determine the video format of the f video data. At this time, the display apparatus transmits a parsing request message carrying f pieces of video data to the service apparatus. After receiving the analysis request message, the service equipment analyzes f pieces of video data carried in the analysis request message, and a large amount of format information of videos and configuration information of analysis and decoding of each format are stored in the service equipment. The service equipment compares the input formats of the f video data with the input formats of the stored videos, and if a matching item is found, configuration information of analysis and decoding of the f video data can be obtained, namely the configuration information of the f video data. And sending the configuration information of the f video data as a response message to the display device, wherein the display device receives the configuration information of the f video data sent by the service device, and analyzes the input format of the f video data according to the configuration information of the f video data, so that the video formats of the f video data can be analyzed, and further which video data in a compressed video format and which video data in a non-compressed video format are determined in the f video data. And further analyzing the video data in the uncompressed video format in the f video data, so that the video information of the video data in the uncompressed video format in the f video data can be acquired.
Further, the display device may store the configuration information of the f pieces of video data, so that if video data of the same input format as the f pieces of video data are received later, the video format may be analyzed to obtain video information of the video data of the uncompressed video format.
If video data matching the input format of the service device is not found in the f pieces of video data, the service device cannot analyze the video data, and report information corresponding to the video data in error is returned to the display device. The display device returns error report information corresponding to the video data to the user so that the user can know that the input format of the video data cannot be identified or is wrong.
It should be noted that an input format of video data that can be parsed by the display device is preset in the display device.
Further, after the video formats of the n video data are determined, the display device stores the video data in the non-compressed format and the video information thereof into the display cache, and stores the video data in the compressed video format into the decoding cache.
Illustratively, the display device has four receiving interfaces S1-S4, and is connected with four external video devices through the four receiving interfaces. The display device may now acquire video data transmitted by four external video devices S1-S4. And, the internal video receiving device of the display device receives one video data M0, and at this time, the display device receives 5 video data in total. After the display device obtains the received 5 video data, the input format of each video data is analyzed, and the video format of each video data is determined. It is assumed that the display device determines that the video format of the video data M0 is an uncompressed video format, the video format of S1 is an uncompressed video format, the video format of S2 is an uncompressed video format, the video format of S3 is an uncompressed video format, the video format of S4 is a compressed video format, and the video format of S5 is a compressed video format. At this time, the display device needs to further parse the video data in the uncompressed video format to acquire video information thereof. That is, the display apparatus may further parse the video data M0, S1, S2, S3, thereby acquiring video information of each of the video data M0, S1, S2, S3.
It should be noted that, if the display device determines that the video formats of the n pieces of video data are all non-compressed video formats, step 303 does not need to be executed, the steps after step 303 may be directly executed, that is, step 304 is directly executed, and if the display device determines that the video formats of the n pieces of video data include a compressed video format, step 303 needs to be executed.
303. And when the video formats of the n pieces of video data contain video data in a compressed video format, the display equipment decodes the video data in the compressed video format into video data in a non-compressed video format and acquires video information of the video data decoded into the non-compressed video format.
Specifically, when it is determined that the video formats of the n pieces of video data include video data in a compressed video format, the display device may decode the video data according to the compressed format of the video data in the compressed video format, so as to decode the video data into video data in a non-compressed video format. After the video data in the compressed format is decoded into the video data in the uncompressed video format, the video data in the uncompressed video format is further analyzed, so that the video information of the video data in the uncompressed video format is acquired.
Further, the display device may read the video data in the compressed video format that needs to be decoded from the decoding cache, and store the decoded video data and the video information corresponding to the acquired video data in the display cache.
As described in the above example, the display apparatus decodes the video data S4 and S5 in the compressed video format among the 5 video data according to the compressed format thereof, thereby decoding S4 and S5 into the video data in the uncompressed video format. And analyzes the decoded video data S4 and S5, thereby obtaining video information of the video data S4 and S5.
304. The display device determines display information for n pieces of video data in the uncompressed video format.
Specifically, reference to step 102 is not repeated herein.
It should be noted that the order between the steps 304 and 302-303 is not limited by the present invention. Step 302 and step 303 may be performed first, and step 304 may be performed; step 304 may be performed first, and step 302 and step 303 are performed; step 302, step 303 and step 304 may also be performed simultaneously. Only one case is shown in the figure.
It should be noted that the display mode of the display device may be an out-of-picture display mode or a picture-in-picture display mode. Of course, other display modules are also possible, and this aspect is not limited in this respect. When the display mode of the display device is the picture-outside display mode, only the received video data and the background image data of the display device need to be mixed, and at this time, because each video data is played independently, it is not necessary to determine a beijing video data in the received video data, and step 306 can be directly executed.
When the display mode of the display device is the picture-in-picture display mode, since the video data transmitted by one video terminal needs to be used as the background image of other received video data, at this time, one background video data needs to be determined in the received video data, and step 305 needs to be executed.
305. And the display equipment determines background video data in the n video data in the uncompressed video formats.
Specifically, if the display device receives the information related to the third video data specified by the user as the background video data, the display device may determine which video data of the n video data the third video data is, according to the information, and further determine the third video data as the background video data. If the display device does not receive the related information that the user designates the third video data as the background video data, the display device may determine the background video data from the n video data according to the policy information that is pre-stored in the display device.
It should be noted that the policy information is preset to indicate the relevant information of the background video data.
It should be noted that the display device may also determine the background video data according to other manners, which is not limited in the present invention.
306. And the display equipment performs mixing processing on the video data of the n video terminals and the background image data of the display equipment by using preset mixing parameters according to the display information of the video data of the n video terminals to obtain output video data and display the output video data.
Specifically, refer to step 103, which is not described herein again.
It should be noted that, when the display mode of the display device is the mode of displaying the picture outside the picture, as shown in fig. 4, the background image only has the background image data of the display device itself, and the received video data does not have the background video data as the background, so the received video data only needs to be mixed with the background image data of the display device itself, and thus only one mixing parameter is needed, so the preset mixing parameter only has one mixing parameter. On the other hand, when the display mode of the display device is the pip display mode, as shown in fig. 5, the video data transmitted from one video terminal needs to be mixed with other video data as background data, and the mixing result needs to be mixed with the background image data of the display device. Therefore, when mixing video data sent by a video terminal as background data with other video data, a mixing parameter is needed, and when mixing a mixing result of mixing the video data sent by a video terminal as background data with other video data with background image data of a display device, a mixing parameter is also needed, at this time, the preset mixing parameter has two mixing parameters, namely a first preset mixing parameter and a second preset mixing parameter. That is, only one blending parameter is needed for the out-of-picture display mode. For picture-in-picture display mode, two blending parameters are required.
Therefore, the preset blending parameters include, when the display mode of the display apparatus is the picture-in-picture display mode: a first preset mixing parameter and a second preset mixing parameter.
At this time, the mixing the video data of the n video terminals and the background image data of the display device by using a preset mixing parameter according to the display information of the video data of the n video terminals to obtain output video data, and displaying the output video data includes:
and mixing the background video data and the third video data by using a first preset mixing parameter according to the display information of the third video data to obtain mixed video data. And mixing the mixed video data and the background image data by using a second preset mixing parameter according to the display information of the background video data to obtain output video data, and displaying the output video data.
Wherein the third video data is video data other than background video data among the video data of the n uncompressed video formats.
That is, the display device mixes the n-1 pieces of video data other than the background data, that is, the third video data with the video data as the background video data according to the respective display position information thereof, using the first preset mixing parameter. And obtaining mixed video data after the mixed processing is finished, mixing the mixed video data and background image data of the display equipment by using a second preset mixing parameter according to the display position information of the video data serving as the background video, thus obtaining output video data, and displaying the output video data.
Further, when the display device obtains video information of n video data, the mixing, according to the display information of the video data of the n video terminals, the video data of the n video terminals and the background image data of the display device by using a preset mixing parameter to obtain output video data, and displaying the output video data includes: and mixing the n uncompressed video format video data and the background image data of the display equipment by using preset mixing parameters according to the display information and the video information of the n uncompressed video format video data to obtain output video data, and displaying the output video data.
That is to say, when the display device acquires video data of video data, it is necessary to consider video information and display information, that is, after the display device acquires display information and video information of video data in n uncompressed video formats, it may analyze whether the video information of the video data in the n uncompressed video formats is the same as the corresponding display information, if so, directly display the video data at a corresponding position according to the video information, and if not, adjust the video data according to the display information and display the adjusted video data at a corresponding position.
Further, the display information includes: and displaying size information and position information. The video information includes: and displaying the size information.
At this time, the mixing the n video data in the uncompressed video format and the background image data of the display device by using a preset mixing parameter according to the display information and the video information of the n video data in the uncompressed video format to obtain output video data, and displaying the output video data includes: determining whether display size information in display information of the video data of the n uncompressed video formats is all the same as the display size information in the video information. If the n uncompressed video formats are the same as each other, mixing the n uncompressed video formats of the video data and the background image data of the display device by using a preset mixing parameter according to the display position information in the display information of the n uncompressed video formats of the video data, acquiring output video data, and displaying the output video data. Or if the display size information in the display information of the at least one piece of video data in the non-compressed video format is different from the display size information in the video information, performing scaling processing on the at least one piece of video data according to the display size information in the display information of the at least one piece of video data; and according to the display position information in the display information of the video data in the n uncompressed video formats, mixing the video data in the n uncompressed video formats and the background image data of the display equipment by using a preset mixing parameter to obtain output video data, and displaying the output video data.
That is, when the display device displays the video data in the n uncompressed video formats, it is necessary to analyze the display information and the video information of each video data and display the video data according to the analysis result. The display information includes: displaying size information, displaying position information, the video information including: when displaying the size information, the display apparatus determines whether display size information in the display information of the video data of each uncompressed video format is the same as the display size information in the video information. When the display size information in the display information of each piece of uncompressed video format video data in the n pieces of uncompressed video format video data is the same as the display size information in the video information, the display device mixes the each piece of uncompressed video format video data with the own background image data of the display device by using the mixing parameter according to the display position information in the display information of each piece of uncompressed video format video data to form one piece of output video data, wherein the n pieces of video data are displayed at the corresponding positions of the n pieces of output video data, and the display device displays the output video data.
When the display size information in the display information of at least one piece of video data in the non-compressed video format in the n pieces of video data in the non-compressed video format is different from the display size information in the video information, the display device performs scaling processing on the at least one piece of video data in the non-compressed video format according to the display size information in the display information of the at least one piece of video data in the non-compressed video format, and adapts the at least one piece of video data in the non-compressed video format to the size specified by the display size information of the at least one piece of video data in the non-compressed video format. After scaling at least one piece of video data in the non-compressed video format, the display device mixes each piece of video data in the non-compressed video format with the self background image data of the display device by using the mixing parameter according to the display position information in the display information of each piece of video data in the non-compressed video format to form an output video data, wherein n pieces of video data are displayed at the corresponding positions of the output video data, and the display device displays the output video data.
Further, the displaying information further includes: characteristic information of the data; the video information further includes: characteristic information of the data.
The characteristic information refers to display parameters of the video data when the display device displays the video data, and may include: color, brightness, display frame rate, etc.
The mixing processing of the n uncompressed video format video data and the background image data of the display device according to the display information and the video information of the n uncompressed video format video data by using a preset mixing parameter to obtain output video data, and displaying the output video data further comprises: determining whether the characteristic information of the data in the display information of the video data of the n uncompressed video formats is the same as the characteristic information of the data in the video information. If the feature information of the data in the display information of the video data in the n uncompressed video formats is the same as the feature information of the data in the video information, and the display size information in the display information of the video data in the n uncompressed video formats is the same as the display size information in the video information, mixing the video data in the n uncompressed video formats and the background image data of the display device by using a preset mixing parameter according to the display position information in the display information of the video data in the n uncompressed video formats, acquiring output video data, and displaying the output video data. Or if the feature information of the data in the display information of the video data in at least one uncompressed video format is different from the feature information of the data in the video information, adjusting the video data in at least one uncompressed video format according to the feature information of the data in the display information of the video data in at least one uncompressed video format, and performing mixing processing on the video data in n uncompressed video formats and the background image data of the display device by using preset mixing parameters according to the display position information in the display information of the video data in n uncompressed video formats when the feature information of the data in the display information of the video data in n uncompressed video formats is the same as the feature information of the data in the video information and the display size information in the display information of the video data in n uncompressed video formats is the same as the display size information in the video information, and acquiring output video data and displaying the output video data.
Specifically, the display information further includes: characteristic information of the data, and the video information further includes: the display apparatus needs to determine whether the characteristic information of the data in the display information of the video data of each uncompressed video format is the same as the display size information in the video information. In the case where the characteristic information of the data in the display information of each video data is the same as the characteristic information of the data in the video information to which it corresponds, and the display size of the display information of each data is the same as the display size information in the video information, the display apparatus displays each video data at the position corresponding to the display position information recorded in the display information thereof. The display device mixes each piece of uncompressed video format video data with the self background image data of the display device by using the mixing parameter according to the display position information in the display information of each piece of uncompressed video format video data to form an output video data, wherein n pieces of video data are displayed at the corresponding positions in the output video data, and the display device displays the output video data.
When the characteristic information of the data in the display information of the video data in at least one non-compressed video format is different from the characteristic information of the data in the video information, the display equipment adjusts the video data in at least one non-compressed video format according to the characteristic information of the data in the display information of the video data in at least one non-compressed video format, so that the video data in at least one non-compressed video format is adapted to the format specified by the characteristic information of the data in the display information corresponding to the video data in at least one non-compressed video format. And when the characteristic information of the data in the display information of the video data in each uncompressed video format is the same as the characteristic information of the data in the video information, and the display size information in the display information of the video data in each uncompressed video format is the same as the display size information in the video information, the display device mixes the video data in each uncompressed video format and the self background image data of the display device into one output video data by using a mixing parameter according to the display position information in the display information of the video data in each uncompressed video format, wherein n video data are displayed at the corresponding positions of the output video data, and the display device displays the output video data.
If some parameter information included in the display information of the video data is not included in the video information of the video data, the video data needs to be adjusted according to the display information, so that the video data can be displayed according to the display information when being displayed. If some parameter information included in the video information of the video data is not included in the display information of the video data, it is directly stated that the parameter information is not limited when the video data is displayed, and the video data can be directly displayed according to the video information of the video data. For example, if the display information of the video data includes the characteristic information of the data, but the video information of the video data does not include the characteristic information of the data, the video data is directly adjusted according to the characteristic information of the data in the display information so that the video data can be displayed according to the display information when being displayed.
As described in the above example, it is assumed that the display information of the video data S1 determined by the display device is: the display size information is a × b, the display position information is a c1 position, and the display information of the video data S2 is: the display size information is a × b, the display position information is a c2 position, and the display information of the video data S3 is: the display size information is a × b, the display position information is a c3 position, and the display information of the video data S4 is: the display size information is a × b, the display position information is a c4 position, and the display information of M0 is: the display size information is d × e, the display position information is c0 position, and the characteristic information of the data is f information, as shown in fig. 3.
The video information of the video data S1 determined by the display device is: the display size information is b × b, the characteristic information of the data is f information, and the video information of the video data S2 is: the display size information is a × b, the data feature information is m information, and the video information of the video data S3 is: the display size information is d × b, the data feature information is n information, and the video information of the video data S4 is: the display size information is e × b, the characteristic information of the data is n information, and the video information of M0 is: the display size information is a × e.
The display device needs to perform scaling processing on M0 to adjust the display size information to d e so that M0 displays the video data in d e size, depending on whether the display size information of the display information of M0 and the feature information of the data are both the same as the display size of the video data and the feature information of the data in the video information, and if the display size information of the display information of M0 is d e and the display size information of the video information of M0 is a e, which are different. Since the feature information of the data of M0 is f information, but the video information of M0 does not have this information, the feature information of the data of M0 is adjusted according to the feature information of the data of M0, so that M0 displays as f information.
The display device, depending on whether or not the display size information of the display information of S1 and the feature information of the data are the same as the display size of the video data in the video information and the feature information of the feature information data of the video data, if the display size information of the display information of S1 is a b and the display size information of the video information of S1 is b, needs to perform scaling processing of S1 to adjust the display size information to b so that S1 is displayed in b. Since there is no feature information of the data in the display information of S1, and the feature information of the feature information data of the video data in the video information of S1 is f information, the display apparatus causes feature information of the feature information data of the video data in the video information according to S1 to be displayed at the time of displaying S1.
The display device does not need to adjust the display size of the display information of S2, which is a × b, and the display size of the video information of S2 which is a × b, according to whether the display size information of the display information of S2 and the feature information of the data are the same as the display size of the video data and the feature information of the data in the video information. Since there is no characteristic information of the data in the display information of S2, and the characteristic information of the data in the video information of S2 is m information, the display apparatus displays the characteristic information of the data in the video information according to S2 when displaying S2.
Similarly, the adjustment S3 and the adjustment S4 are not described herein.
If the preset mixing parameter of the display device is alpha, after the video data M0, S1-S4 are adjusted, the display device performs mixing processing on the video data M0, S1-S4 and the background image data of the display device by using the mixing parameter alpha according to the display position information c0 of the video data M0, the display position information c1 of the video data S1, the display position information c1 of the video data S1, the display position information c2 of the video data S2, the display position information c3 of the video data S3 and the display position information c4 of the video data S4 to obtain output video data, and displays the output video data. In the output video data, M0 displays the characteristic information of the data at the position c0, with the display size of the video data being d × e. S1 displays the feature information of the feature information data of the video data at the position c1 with the display size b × b of the video data as the f information. S2 displays the video data at the position c2 with the display size a × b and the characteristic information of the data being m information. S3 shows the video data at the position c3 with the display size a × b and the characteristic information of the data as n information. S4 shows the video data at the position c4 with the display size a × b and the characteristic information of the data as n information.
Further, after the display related information of the video data is adjusted, that is, after the video information is adjusted, the display device stores the adjusted video information and video data in the display cache.
307. The display equipment receives the control instruction information.
When a user needs to change the related information of certain video data, the control information can be sent to the display device, and the display device receives the secondary control instruction information.
The manipulation instruction information may include: picture size scaling instruction information, or position movement instruction information, or picture rotation instruction information, or video switching instruction information.
It should be noted that the control instruction information may also include other instruction information, for example, background switching instruction information, which is not limited in this disclosure.
308. And the display equipment determines the type of the control instruction information and acquires the adjustment parameter information corresponding to the control instruction information.
The types of the control instruction information comprise global control instruction information and independent control instruction information. The adjustment parameter information is related display information when the display device is indicated to display the first video data. The first video data is video data in an uncompressed video format corresponding to the control instruction information.
Specifically, when the display device receives the manipulation instruction information, the display device needs to analyze the sub-manipulation instruction information to determine the type of the manipulation instruction information because the manipulation instruction information has two different types.
The display device may obtain corresponding adjustment parameter information according to the control instruction information after receiving the control instruction information. When the corresponding adjustment parameter information is carried in the control instruction information, the display device may obtain the adjustment parameter information when analyzing the control instruction information. When the control instruction information does not carry the adjustment parameter information, the display device can search the prestored information according to the control instruction information, so that the adjustment parameter information corresponding to the control instruction information in the prestored information is obtained.
For example, if the type of the control instruction information received by the display device is the type of the global control instruction and it is analyzed that no adjustment parameter information is carried in the secondary global control instruction information, the display device may obtain the adjustment parameter information corresponding to the control instruction information from the pre-stored information of the display device.
Further, if the display device does not find the adjustment parameter information corresponding to the control instruction information in the pre-stored information, the display device may determine the adjustment parameter information according to the control instruction information. For example, if the operation instruction information is the instruction information for enlarging the picture size by two times, the display device receives the control instruction and the information, analyzes the information, and obtains the current display size information of the video data corresponding to the control instruction information after analyzing the content of the control instruction information, so as to determine the adjustment parameter information according to the current display size information.
It should be noted that the display device may also determine the adjustment parameter information corresponding to the control instruction information according to other methods, which is not limited in the present invention.
It should be noted that, a manner for specifically acquiring the adjustment parameter information by the manipulation instruction information corresponding to the display device may be predetermined. For example, it may be preset that the screen size scaling instruction information in the predetermined manipulation instruction information needs to carry the adjustment parameter information, and at this time, when the user sends the instruction information to the display device, the user also sends the corresponding adjustment parameter information. The adjustment parameter information of the position movement instruction information in the manipulation instruction information may be predefined, and the corresponding adjustment parameter information may be obtained from the prestored information.
It should be noted that the first video data is different according to the type of the control command information. If the type of the control instruction information is the type of the global control instruction, it indicates that all video data need to be processed, and at this time, the first video data is the video data in the n uncompressed video formats. If the type of the control instruction information is the type of the independent control instruction, it is indicated that one of the video data is controlled, and at this time, the first video data is the video data corresponding to the control instruction information.
It should be noted that, according to different types of the manipulation instruction information, the specific response manner of the display device to the manipulation instruction information is different, if the type of the manipulation instruction information is the type of the global manipulation instruction, the display device performs step 309a, and if the type of the manipulation instruction information is the type of the independent manipulation instruction, the display device performs steps 309b to 312b 2.
309a, when the type of the control instruction information is global control instruction information, displaying, by a display device, the first video data according to the control instruction information and the corresponding adjustment parameter information.
The first video data is video data of n uncompressed video formats.
Specifically, when receiving the global control instruction information, the display device controls all video data according to the global control instruction information and the acquired adjustment parameter information, and displays the controlled video data.
As described in the above example, it is assumed that the adjustment parameter display information corresponding to the global display adjustment instruction information is stored in the pre-information, and if the received global manipulation instruction information is the global display adjustment instruction information, the adjustment parameter display information is the parameter information related to the display mode of the n pieces of video data by default. At this time, the display of the video data M0 and S1-S4 of the display device is in a disorder state, as shown in FIG. 6. After the display device receives the global display adjustment instruction information, the display device analyzes the global display adjustment instruction information, the adjustment parameter display information is not analyzed, at this time, the display can search the pre-stored information according to the global display adjustment instruction information, and search the corresponding global display adjustment instruction information in the pre-stored information, then the display device adjusts the video data M0 and S1-S4 according to the global display adjustment instruction information and the adjustment parameter display information, so that the video data M0 and S1-S4 are restored to the default display state, and the adjusted video data M0 and S1-S4 are displayed, as shown in fig. 7. At this time, the first video data are the adjusted video data M0 and S1-S4.
309b, when the type of the control instruction information is determined to be the type of the independent control instruction, the display device determines the video data in the activated state and the video data corresponding to the control instruction information.
The video data in the active state refers to that the display information of the video data is in a controllable state.
Specifically, when the display device determines that the type of the control instruction information is an independent control instruction, the control instruction information needs to be parsed, so that video data corresponding to the control instruction information is determined. And determining the video data in the active state in the cache information.
It should be noted that the operation instruction information carries identification information corresponding to the video data to be manipulated. The identification information may be an interface identifier corresponding to each piece of video data received by the display device, and of course, other identification information capable of uniquely identifying the video data may also be used, for example, an identifier of the video data, which is not limited in the present invention.
It should be noted that, when the display device determines the video data corresponding to the control instruction information, the control instruction information may not carry identification information of the video data, and at this time, the display device may directly determine the video data corresponding to the control instruction information according to the analyzed control instruction information. For example, the control instruction information is video switching instruction information, and at this time, when the display device analyzes that the control instruction information is the video switching instruction information, the display device may use the next video data in the active state as the video data corresponding to the video switching instruction information. This method requires the order among n video data received by the display device to be set in advance. The preset sequence among the n video data received by the display device can be realized by directly sequencing interfaces for receiving the video data, or distributing a mixing parameter to each video data and sequencing the mixing parameters.
It should be noted that the sequence among the n video data is an end-to-end sequence, that is, the next video data of the last video data is the first video data. For example, the display device receives 5 pieces of video data, which are S1-S4 and M0, respectively, sorts the received video data into M0 and S1-S4, that is, the next video data of M0 is S1, the next video data of S1 is S2, the next video data of S2 is S3, the next video data of S3 is S4, and the next video data of S4 is M0.
Or, when the display device analyzes that the control instruction information is the video switching instruction information, the display device may also return a picture in which all video data are displayed as the main control picture, so that the user can select the video data to be switched in the main control picture, and the video data corresponding to the video switching instruction information can be determined according to the selection of the user.
In addition, among a plurality of video data displayed by the display device, only one is in an active state at a certain time, and the others are in a standby state. The user can only operate the video data in the current active state, and cannot control the video data in the standby state. If the user needs to control the video data except the active state, the video data needs to be set to the active state first to realize the control of the video data. The display device may record, in its cache information, identification information of video data that is in an active state at the present time.
310b, when the video data corresponding to the control instruction information is in a foreground state, the display device determines whether the video data corresponding to the control instruction information is in an activated state.
The video data corresponding to the control instruction information is in a foreground state, which means that the video data corresponding to the control instruction information is not covered by other video data when the video data is displayed.
It should be noted that, if the display mode of the display device is the display mode of the out-of-picture, each piece of video data is displayed independently in the display mode of the out-of-picture, and at this time, each piece of video data is covered by other pieces of video data when displayed, so each piece of video data is in the foreground state. If the display mode of the display device is a picture-in-picture display mode, one piece of video data is required as background video data in the picture-in-picture display mode, and other pieces of video data can be displayed with the background video data as a background. At this time, when the display device displays video data, the video data is overlaid with other video data as background video data, the other video data is in a foreground state, and the background video data is in a non-foreground state.
Specifically, the display device needs to determine whether the video data corresponding to the control instruction information is in a foreground state, that is, when the video data corresponding to the control instruction information is displayed, whether the video data corresponding to the control instruction information is not covered by other video data is determined. And if the video data corresponding to the control instruction information is determined not to be in the foreground state, switching the video data, so that the video data corresponding to the control instruction information is in the foreground state. That is, when the video data corresponding to the control instruction information is not in the foreground state, the display device sets the video data corresponding to the control instruction information to be in the foreground state.
And under the condition that the video data corresponding to the control instruction information is in a foreground state, after the video data in an activated state and the video data corresponding to the control instruction information are determined, the display equipment analyzes whether the video data in the activated state is the same as the video data corresponding to the control instruction information or not, so that whether the state of the video data needs to be changed or not is determined.
It should be noted that, according to different determination results, the display device performs different steps, and if it is determined that the video data in the active state is the video data corresponding to the manipulation instruction information, step 311b1 is performed, and if it is determined that the video data in the active state is not the video data corresponding to the manipulation instruction information, steps 311b2-312b2 are not performed.
311b1, if the video data corresponding to the control instruction information is in an activated state, displaying, by the display device, the first video data according to the control instruction information and the corresponding adjustment parameter information.
The first video data is video data in an active state.
Specifically, when the display device determines that the video data corresponding to the control instruction information is the video data in the activated state, it indicates that the video data in the activated state needs to be controlled, and the current state of each video data does not need to be changed. And the display equipment adjusts the video data in the current activated state according to the adjustment parameter information corresponding to the acquired control instruction information, so that the adjusted video data is displayed.
The manipulation instruction information may include: picture size scaling instruction information, or position movement instruction information, or picture rotation instruction information, or video switching instruction information.
The control instruction information comprises: when the frame size scaling instruction information is received, the displaying the first video data according to the control instruction information and the corresponding adjustment parameter information thereof includes: and zooming the first video data according to the picture size zooming instruction information and the corresponding adjusting parameter information thereof, and displaying the zoomed first video data.
That is to say, when the manipulation instruction information is the screen size scaling instruction information, the display device may obtain, in step 308, the adjustment parameter information corresponding to the screen size scaling instruction information, the display device may analyze the screen size scaling instruction information and the adjustment parameter information corresponding to the screen size scaling instruction information, and the display device may obtain that the video data corresponding to the screen size scaling instruction information is the current display information of the first video data, so that the adjustment parameter information may be compared with the display size information in the display information, and if it is determined that the adjustment parameter information is different from the display size information in the display information, the first video data is scaled according to the adjustment parameter information, so as to adjust the display size of the first video data to the size specified by the adjustment parameter information. After the first video data is subjected to scaling processing, the first video data is displayed.
When the adjustment parameter information is determined to be the same as the display size information in the display information, the display device directly displays the first video data without scaling the first video data.
It should be noted that, the process of displaying the first video data may refer to step 306, and is not described herein again.
Or after the display device analyzes the picture size scaling instruction information and the corresponding adjustment parameter information, the display device directly performs the required control processing in the picture size scaling instruction information on the first video data according to the adjustment parameter information corresponding to the picture size scaling instruction information, that is, the display device directly performs the scaling processing on the first video data according to the adjustment parameter information corresponding to the picture size scaling instruction information, and displays the scaled first video data.
The control instruction information comprises: when the position movement instruction information is received, the displaying the first video data according to the control instruction information and the corresponding adjustment parameter information thereof includes: and updating the display position information of the first video data according to the position movement instruction information and the corresponding adjustment parameter information thereof, and displaying the first video data according to the updated display position information.
That is to say, when the manipulation instruction information is the position movement instruction information, the display device may obtain, in step 308, the adjustment parameter information corresponding to the position movement instruction information, the display device may analyze the position movement instruction information and the adjustment parameter information corresponding to the position movement instruction information, and the display device may obtain that the video data corresponding to the position movement instruction information is the current display information of the first video data, so that the adjustment parameter information may be compared with the display position information in the display information, and if it is determined that the adjustment parameter information is different from the display position information in the display information, the display position information of the first video data is updated according to the adjustment parameter information, so as to adjust the display position of the first video data to the position specified by the adjustment parameter information. After the display position information of the first video data is updated, the first video data is displayed.
When the adjustment parameter information is determined to be the same as the display position information in the display information, the display device directly displays the first video data without scaling the first video data.
It should be noted that, the process of displaying the first video data may refer to step 306, and is not described herein again.
Or after the display device acquires the display information of the first video data, the display device may directly update the display position information in the display information according to the adjustment parameter information corresponding to the position movement instruction information, and display the first video data according to the updated display position information.
It should be noted that the adjustment parameter information may be parameter information that needs to be set, or may be a change amount of a relevant parameter of the first video data, and at this time, the first video data needs to be adjusted according to the adjustment parameter information and the corresponding display information. In the above description, the adjustment parameter information may be parameter information that needs to be set, for example, if the adjustment parameter information is a change amount of a relevant parameter of first video data, the display device needs to acquire display information of the first video data, so that on the basis of the display information, the relevant parameter of the first video data is adjusted according to the adjustment parameter information, and a specific process is similar to an adjustment process of the adjustment parameter information that may be parameter information that needs to be set, and is not described herein again.
As described in the above example, it is assumed that the video data corresponding to the manipulation instruction information is M0, and M0 is the video data in the active state. If the control instruction information is position movement instruction information, and the position movement instruction information carries the position movement parameters, that is, the position movement instruction information carries the adjustment parameter information. The display device can acquire the adjustment parameter information when analyzing the control instruction information. After the video data corresponding to the control command information is determined to be the video data M0 in the activated state, the display information of the video data M0 is acquired, and the display position information of the video data M0 can be directly updated according to the control command information adjustment parameter information, so that the video data M0 is displayed at the position corresponding to the position movement parameter.
It should be noted that the position movement parameter may be position information directly displayed by the video data M0, at this time, the display device may directly display the video data M0 according to the position movement parameter, or may also be position information that needs to be adjusted by the video data M0, at this time, the display device needs to adjust the display position information of M0 according to the position movement parameter, so as to display M0 according to the adjusted display position information of M0.
The control instruction information comprises: when the picture is rotated, displaying the first video data according to the control instruction information and the corresponding adjustment parameter information thereof includes: and rotating the first video data according to the picture rotation instruction information and the adjustment parameter information corresponding to the picture rotation instruction information, and displaying the rotated first video data.
That is to say, when the manipulation instruction information is the picture rotation instruction information, the display device may obtain, in step 308, the adjustment parameter information corresponding to the picture rotation instruction information, the display device may analyze the picture rotation instruction information and the adjustment parameter information corresponding to the picture rotation instruction information, and the display device may obtain that the video data corresponding to the picture rotation instruction information is the current display information of the first video data, after the display information of the first video data is obtained, rotate the video data according to the picture rotation instruction information, and display the rotated first video data according to the adjustment parameter information.
The control instruction information comprises: when video switching instruction information is received, the displaying the first video data according to the control instruction information and the corresponding adjustment parameter information thereof includes: and displaying the first video data according to the adjustment parameter information corresponding to the video switching instruction information.
That is to say, when the control instruction information is the video switching instruction information, the display device may obtain the adjustment parameter information corresponding to the video switching instruction information in step 308, and the display device may directly display the first video data according to the video switching instruction information and the adjustment parameter information corresponding to the video switching instruction information.
It should be noted that the video switching instruction information is an instruction for switching the video data in the non-foreground state to the foreground state, and after receiving the video switching instruction information, the display device switches the video data corresponding to the video switching instruction information, that is, the first video data, to the foreground state in step 309 b.
311b2, if the video data corresponding to the manipulation instruction information is not the video data in the active state, the display device sets the video data in the active state to be in the standby state, and sets the video data corresponding to the manipulation instruction information to be in the active state.
The video data in the standby state refers to a state that display information of the video data is not controllable.
Specifically, when the display device determines that the video data corresponding to the control instruction information is not the video data in the active state, the states of the two video data need to be changed, so that the video data corresponding to the control instruction information is changed from the standby state to the active state. At this time, the display device changes the video data currently in the active state into the standby state, and changes the state of the video data corresponding to the control instruction information from the standby state into the active state.
312b2, the display device displays the first video data according to the control instruction information and the corresponding adjustment parameter information thereof, where the first video data is in an activated state.
Specifically, refer to step 311b1, which is not described herein again.
The embodiment of the invention provides a method for displaying multiple video data, wherein a display device receives video data sent by n video terminals, determines the video formats of the n video data, acquires video information of the video data in a non-compressed video format, and can decode the video data in the compressed video format into the video data in the non-compressed video format and acquire the video information of the video data in the decoded non-compressed video format when the video formats of the n video data contain the video data in the compressed video format, and determines the display information of the video data in the n non-compressed video formats, so that the display information and the video information are obtained according to the video data, and the n video data are mixed into one output video data by using a mixing parameter to display the data. In this way, after receiving the video data sent by the n video terminals, the display device can analyze the video formats of the n video data, decode the video data in the compressed video format into the video data in the uncompressed video format, acquire the video information of the video data in the n uncompressed video formats, determine the display information of the video data in the n uncompressed video formats, mix the n video data into one output video data according to the display information and the analyzed corresponding video information, and display the data by using the mixing parameters. Compared with the prior art that the display equipment can only display one video data at a time, the display equipment in the invention can simultaneously display the video data sent by a plurality of video terminals without external equipment, thereby meeting the requirement of simultaneously watching the video data of the plurality of video terminals by a user and improving the user experience.
An embodiment of the present invention provides a device for displaying multiple video data, as shown in fig. 8, including:
a receiving unit 801, configured to receive video data sent by n video terminals.
Wherein n is an integer greater than 1.
A determining unit 802, configured to determine display information of the video data of the n video terminals.
A processing unit 803, configured to perform mixing processing on the video data of the n video terminals and the background image data of the display device by using preset mixing parameters according to the display information of the video data of the n video terminals determined by the determining unit 802, obtain output video data, and display the output video data.
The background image data refers to background data used when the display device displays video data.
Further, the determining unit 802 is further configured to determine background video data in the n uncompressed video formats.
At this time, the processing unit 803 is specifically configured to mix the background video data and the third video data by using a first preset mixing parameter according to the display information of the third video data, so as to obtain the video data subjected to mixing processing. And mixing the mixed video data and the background image data by using a second preset mixing parameter according to the display information of the background video data to obtain output video data, and displaying the output video data.
Wherein the third video data is video data other than background video data among the video data of the n uncompressed video formats.
Further, as shown in fig. 9, the apparatus for displaying multiple video data further includes: an acquisition unit 804.
The determining unit 802 is further configured to determine video formats of the n pieces of video data.
Specifically, the determining unit is specifically configured to parse input formats of n pieces of video data, and determine video formats of m pieces of video data according to a parsing result when the input formats of m pieces of video data are parsed.
Wherein m is an integer greater than 0 and not greater than n.
Or, the determining unit 802 is specifically configured to parse the input formats of the n video data, and send, to the service device, a parsing request message carrying the f video data when the input formats of the f video data are not parsed.
Wherein f is an integer which is more than 0 and not more than n, and the sum of f and m is n.
At this time, the receiving unit 801 is further configured to receive configuration information of the f video data sent by the service device.
The determining unit 802 is specifically configured to parse the input formats of the f video data according to the configuration information of the f video data received by the receiving unit 801, and determine the video formats of the f video data according to the parsing result.
An obtaining unit 804, configured to obtain video information of the video data in the uncompressed video format determined by the determining unit 802.
Wherein the video format comprises: uncompressed video format or compressed video format.
Specifically, the obtaining unit 804 is specifically configured to obtain video information of the video data in the uncompressed video format in the m pieces of video data when the determining unit 802 parses the video data in the uncompressed video format in the m pieces of video data. Alternatively, the first and second electrodes may be,
the obtaining unit 804 is specifically configured to obtain video information of the video data in the uncompressed video format in the f video data when the determining unit 802 parses the video data in the uncompressed video format in the f video data.
The processing unit 803 is further configured to, when the video format of the n pieces of video data includes video data in a compressed video format, decode the video data in the compressed video format into video data in an uncompressed video format, and acquire video information of the video data decoded into the uncompressed video format.
At this time, the processing unit 803 is configured to perform mixing processing on the video data of the n video terminals and the background image data of the display device by using a preset mixing parameter according to the display information of the video data of the n video terminals determined by the determining unit, acquire output video data, and display the output video data, where the processing unit is configured to:
the processing unit 803 is specifically configured to perform mixing processing on the video data in the n uncompressed video formats and the background image data of the display device by using a preset mixing parameter according to the display information and the video information of the video data in the n uncompressed video formats, acquire output video data, and display the output video data.
Specifically, the display information includes: displaying size information and position information; the video information includes: and displaying the size information.
At this time, the processing unit 803 is specifically configured to determine whether the display size information in the display information of the video data in the n uncompressed video formats is the same as the display size information in the video information.
If the n uncompressed video formats are the same as each other, mixing the n uncompressed video formats of the video data and the background image data of the display device by using a preset mixing parameter according to the display position information in the display information of the n uncompressed video formats of the video data, acquiring output video data, and displaying the output video data.
Or if the display size information in the display information of the at least one piece of video data in the non-compressed video format is different from the display size information in the video information, performing scaling processing on the at least one piece of video data according to the display size information in the display information of the at least one piece of video data; and according to the display position information in the display information of the video data in the n uncompressed video formats, mixing the video data in the n uncompressed video formats and the background image data of the display equipment by using a preset mixing parameter to obtain output video data, and displaying the output video data.
Further, the displaying information further includes: characteristic information of the data; the video information further includes: characteristic information of the data.
The characteristic information of the data refers to display parameters of the video data when the display equipment displays the video data.
At this time, the processing unit 803 is specifically configured to determine whether feature information of data in the display information of the video data in the n uncompressed video formats is the same as feature information of data in the video information.
If the feature information of the data in the display information of the video data in the n uncompressed video formats is the same as the feature information of the data in the video information, and the display size information in the display information of the video data in the n uncompressed video formats is the same as the display size information in the video information, mixing the video data in the n uncompressed video formats and the background image data of the display device by using a preset mixing parameter according to the display position information in the display information of the video data in the n uncompressed video formats, acquiring output video data, and displaying the output video data.
Or if the feature information of the data in the display information of the video data in at least one uncompressed video format is different from the feature information of the data in the video information, adjusting the video data in at least one uncompressed video format according to the feature information of the data in the display information of the video data in at least one uncompressed video format, and performing mixing processing on the video data in n uncompressed video formats and the background image data of the display device by using preset mixing parameters according to the display position information in the display information of the video data in n uncompressed video formats when the feature information of the data in the display information of the video data in n uncompressed video formats is the same as the feature information of the data in the video information and the display size information in the display information of the video data in n uncompressed video formats is the same as the display size information in the video information, and acquiring output video data and displaying the output video data.
Further, the receiving unit 801 is further configured to receive control instruction information.
The determining unit 802 is further configured to determine the type of the manipulation instruction information received by the receiving unit 801.
The type of the control instruction information comprises the type of a global control instruction and the type of an independent control instruction.
The obtaining unit 804 is further configured to obtain adjustment parameter information corresponding to the control instruction information, where the adjustment parameter information is related display information when the display device is instructed to display the first video data.
The first video data is video data in an uncompressed video format corresponding to the control instruction information.
The processing unit 803 is further configured to, when the type of the control instruction information is a type of a global control instruction, display the first video data according to the control instruction information and the corresponding adjustment parameter information.
The first video data is video data of n uncompressed video formats.
Further, the determining unit 802 is further configured to determine, when the type of the manipulation instruction information is determined to be an independent manipulation instruction type, the video data in the active state and the video data corresponding to the manipulation instruction information.
The video data in the active state refers to that the display information of the video data is in a controllable state.
The determining unit 802 is further configured to determine whether the video data corresponding to the control instruction information is in an active state when the video data corresponding to the control instruction information is in a foreground state.
The processing unit 803 is further configured to, when the determining unit 802 determines that the video data corresponding to the control instruction information is not in the active state, set the active state video data to be in a standby state, and set the video data corresponding to the control instruction information to be in the active state. And displaying the first video data according to the control instruction information and the corresponding adjustment parameter information thereof, wherein the first video data is in an activated state.
The video data in the standby state refers to a state that display information of the video data is not controllable.
Or when the determining unit 802 determines that the video data corresponding to the control instruction information is the video data in the active state, the first video data is displayed according to the adjustment parameter information in the control instruction information and the adjustment parameter information corresponding to the adjustment parameter information, where the first video data is the video data in the active state.
Further, the processing unit 803 is further configured to set the video data corresponding to the control instruction information to be in a foreground state when the video data corresponding to the control instruction information is not in the foreground state.
Further, the control instruction information includes: picture size scaling instruction information, or position movement instruction information, or picture rotation instruction information, or video switching instruction information.
At this time, the processing unit 803 is specifically configured to, when the manipulation instruction information includes: and when the picture size zooming instruction information is received, zooming the first video data according to the picture size zooming instruction information and the corresponding adjusting parameter information thereof, and displaying the zoomed first video data. Alternatively, the first and second electrodes may be,
the control instruction information comprises: and updating the display position information of the first video data according to the position movement instruction information and the corresponding adjustment parameter information thereof when the position is moved, and displaying the first video data according to the updated display position information. Alternatively, the first and second electrodes may be,
the control instruction information comprises: and when the image rotation instruction information is received, performing rotation processing on the first video data according to the image rotation instruction information and the adjustment parameter information corresponding to the image rotation instruction information, and displaying the first video data after the rotation processing. Alternatively, the first and second electrodes may be,
the control instruction information comprises: and when the video switching instruction information is received, displaying the first video data according to the adjustment parameter information corresponding to the video switching instruction information.
The embodiment of the invention provides a device for displaying multiple video data, wherein a display device receives video data sent by n video terminals, determines display information of the video data of the n video terminals, and performs mixing processing on the video data of the n video terminals and background image data of the display device by using preset mixing parameters according to the determined display information of the video data of the n video terminals, so as to obtain output video data and display the output video data. Therefore, after receiving the video data sent by the n video terminals, the display device can determine the display information of the n video data, and mix the n video data into one output video data by using the mixing parameter according to the display information to display the data. Compared with the prior art that the display equipment can only display one video data at a time, the display equipment can simultaneously display the video data sent by the plurality of video terminals through the method, so that the requirement of a user for watching the video data of the plurality of video terminals simultaneously is met, and the user experience is improved.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (20)

1. A method for multiple video data display, comprising:
receiving video data sent by n video terminals; wherein n is an integer greater than 1;
determining display information of the video data of the n video terminals;
mixing the video data of the n video terminals and the background image data of the display equipment by using preset mixing parameters according to the display information of the video data of the n video terminals to obtain output video data, and displaying the output video data, wherein the background image data is background data used when the display equipment displays the video data;
before the mixing processing is performed on the video data of the n video terminals and the background image data of the display device by using preset mixing parameters according to the display information of the video data of the n video terminals, acquiring output video data, and displaying the output video data, the method further includes:
background video data is determined from the n video data in the uncompressed video format, and the background video data is used as a background image of other video data.
2. The method according to claim 1, wherein before the mixing processing is performed on the video data of the n video terminals and the background image data of the display device by using preset mixing parameters according to the display information of the video data of the n video terminals to obtain output video data, and the output video data is displayed, the method further comprises:
determining the video formats of n pieces of video data, and acquiring video information of the video data in the uncompressed video format; the video format includes: a non-compressed video format or a compressed video format;
when the video formats of the n pieces of video data comprise video data in a compressed video format, decoding the video data in the compressed video format into video data in a non-compressed video format, and acquiring video information of the video data decoded into the non-compressed video format;
the mixing the video data of the n video terminals and the background image data of the display device according to the display information of the video data of the n video terminals by using preset mixing parameters to obtain output video data, and displaying the output video data comprises:
and mixing the n uncompressed video format video data and the background image data of the display equipment by using preset mixing parameters according to the display information and the video information of the n uncompressed video format video data to obtain output video data, and displaying the output video data.
3. The method of claim 2, further comprising, after displaying the output video data:
receiving control instruction information;
determining the type of the control instruction information, and acquiring adjustment parameter information corresponding to the control instruction information, wherein the adjustment parameter information is related display information when the display equipment is indicated to display first video data; the first video data is video data in an uncompressed video format corresponding to the control instruction information; the type of the control instruction information comprises the type of a global control instruction and the type of an independent control instruction;
and when the type of the control instruction information is the type of the global control instruction, displaying first video data according to the control instruction information and the corresponding adjustment parameter information thereof, wherein the first video data are n video data in the non-compressed video format.
4. The method of claim 2, wherein determining the video format of the n video data and obtaining the video information of the video data in the uncompressed video format comprises:
analyzing the input formats of n video data, determining the video formats of m video data according to the analysis result when the input formats of m video data are analyzed, analyzing the video data of the uncompressed video format in the m video data, and acquiring the video information of the video data of the uncompressed video format in the m video data; m is an integer greater than 0 and not greater than n; alternatively, the first and second electrodes may be,
when the input formats of the f video data are not analyzed, sending an analysis request message carrying the f video data to service equipment; f is an integer which is more than 0 and not more than n, and the sum of f and m is n;
receiving configuration information of the f video data sent by the service equipment;
analyzing the input format of the f video data according to the configuration information of the f video data, determining the video format of the f video data according to the analysis result, analyzing the video data of the non-compressed video format in the f video data, and acquiring the video information of the video data of the non-compressed video format in the f video data.
5. The method according to any one of claims 2 to 4,
the display information includes: displaying size information and position information; the video information includes: displaying the size information;
the mixing processing of the n uncompressed video format video data and the background image data of the display device according to the display information and the video information of the n uncompressed video format video data by using a preset mixing parameter to obtain output video data, and displaying the output video data comprises:
determining whether display size information in display information of the video data of the n uncompressed video formats is the same as the display size information in the video information;
if the n uncompressed video formats are the same as each other, mixing the n uncompressed video formats of the video data and the background image data of the display device by using a preset mixing parameter according to display position information in the display information of the n uncompressed video formats of the video data to obtain output video data, and displaying the output video data; alternatively, the first and second electrodes may be,
if the display size information in the display information of the video data in at least one uncompressed video format is different from the display size information in the video information, performing scaling processing on the at least one video data according to the display size information in the display information of the at least one video data; and according to the display position information in the display information of the video data in the n uncompressed video formats, mixing the video data in the n uncompressed video formats and the background image data of the display equipment by using a preset mixing parameter to obtain output video data, and displaying the output video data.
6. The method of claim 5,
the display information further includes: characteristic information of the data; the video information further includes: characteristic information of the data; the characteristic information of the data refers to display parameters of the video data when the display equipment displays the video data;
the mixing processing of the n uncompressed video format video data and the background image data of the display device according to the display information and the video information of the n uncompressed video format video data by using a preset mixing parameter to obtain output video data, and displaying the output video data further comprises:
determining whether the characteristic information of the data in the display information of the video data of the n uncompressed video formats is the same as the characteristic information of the data in the video information;
if the feature information of the data in the display information of the video data in the n uncompressed video formats is the same as the feature information of the data in the video information, and the display size information in the display information of the video data in the n uncompressed video formats is the same as the display size information in the video information, mixing the video data in the n uncompressed video formats and the background image data of the display device by using a preset mixing parameter according to the display position information in the display information of the video data in the n uncompressed video formats to obtain output video data, and displaying the output video data; alternatively, the first and second electrodes may be,
if the characteristic information of the data in the display information of the video data in at least one uncompressed video format is different from the characteristic information of the data in the video information, adjusting the video data in at least one uncompressed video format according to the characteristic information of the data in the display information of the video data in at least one uncompressed video format, and performing mixing processing on the video data in n uncompressed video formats and the background image data of the display device by using preset mixing parameters according to the display position information in the display information of the video data in n uncompressed video formats when the characteristic information of the data in the display information of the video data in n uncompressed video formats is the same as the characteristic information of the data in the video information and the display size information in the display information of the video data in n uncompressed video formats is the same as the display size information in the video information, and acquiring output video data and displaying the output video data.
7. The method of claim 1,
the preset mixing parameters include: a first preset mixing parameter and a second preset mixing parameter;
the mixing the video data of the n video terminals and the background image data of the display device according to the display information of the video data of the n video terminals by using preset mixing parameters to obtain output video data, and displaying the output video data comprises:
mixing background video data and third video data by using a first preset mixing parameter according to display information of the third video data to obtain mixed video data; wherein the third video data is video data other than background video data among the video data of the n uncompressed video formats;
and mixing the mixed video data and the background image data by using a second preset mixing parameter according to the display information of the background video data to obtain output video data, and displaying the output video data.
8. The method of claim 3, further comprising:
when the type of the control instruction information is determined to be the type of the independent control instruction, determining video data in an activated state and video data corresponding to the control instruction information; the video data in the activated state refers to that the display information of the video data is in a controllable state;
when the video data corresponding to the control instruction information is in a foreground state, determining whether the video data corresponding to the control instruction information is in an activated state;
if the video data corresponding to the control instruction information is not the video data in the activated state, setting the video data in the activated state as a standby state, and setting the video data corresponding to the control instruction information as an activated state; the video data in the standby state refers to that the display information of the video data is in an uncontrollable state;
displaying the first video data according to the control instruction information and the corresponding adjustment parameter information thereof, wherein the first video data is in an activated state; alternatively, the first and second electrodes may be,
and if the video data corresponding to the control instruction information is the video data in the activated state, displaying the first video data according to the adjustment parameter information in the control instruction information and the adjustment parameter information corresponding to the adjustment parameter information, wherein the first video data is the video data in the activated state.
9. The method of claim 8, further comprising:
and when the video data corresponding to the control instruction information is not in a foreground state, setting the video data corresponding to the control instruction information to be in the foreground state.
10. The method according to claim 8 or 9, wherein the manipulation instruction information comprises: picture size zooming instruction information, or position moving instruction information, or picture rotation instruction information, or video switching instruction information;
the control instruction information comprises: when the frame size scaling instruction information is received, the displaying the first video data according to the control instruction information and the corresponding adjustment parameter information thereof includes:
zooming the first video data according to the picture size zooming instruction information and the corresponding adjusting parameter information thereof, and displaying the zoomed first video data; alternatively, the first and second electrodes may be,
the control instruction information comprises: when the position movement instruction information is received, the displaying the first video data according to the control instruction information and the corresponding adjustment parameter information thereof includes:
updating the display position information of the first video data according to the position movement instruction information and the corresponding adjustment parameter information thereof, and displaying the first video data according to the updated display position information; alternatively, the first and second electrodes may be,
the control instruction information comprises: when the picture is rotated, displaying the first video data according to the control instruction information and the corresponding adjustment parameter information thereof includes:
rotating the first video data according to the picture rotation instruction information and the adjustment parameter information corresponding to the picture rotation instruction information, and displaying the rotated first video data; alternatively, the first and second electrodes may be,
the control instruction information comprises: when video switching instruction information is received, the displaying the first video data according to the control instruction information and the corresponding adjustment parameter information thereof includes:
and displaying the first video data according to the adjustment parameter information corresponding to the video switching instruction information.
11. An apparatus for multiple video data displays, comprising:
the receiving unit is used for receiving the video data sent by the n video terminals; wherein n is an integer greater than 1;
a determination unit configured to determine display information of the video data of the n video terminals;
the processing unit is used for mixing the video data of the n video terminals and the background image data of the display equipment by using preset mixing parameters according to the display information of the video data of the n video terminals determined by the determining unit, acquiring output video data and displaying the output video data, wherein the background image data is background data used when the display equipment displays the video data;
the determining unit is further configured to determine background video data, which is used as a background image of other video data, in the video data in the n uncompressed video formats.
12. The apparatus of claim 11, further comprising:
the determining unit is further configured to determine video formats of the n pieces of video data;
an acquisition unit configured to acquire video information of the video data in the uncompressed video format determined by the determination unit; the video format includes: a non-compressed video format or a compressed video format;
the processing unit is further configured to, when the video format of the n pieces of video data includes video data in a compressed video format, decode the video data in the compressed video format into video data in an uncompressed video format, and acquire video information of the video data decoded into the uncompressed video format;
the processing unit is specifically configured to perform mixing processing on the n uncompressed video format video data and the background image data of the display device by using a preset mixing parameter according to the display information and the video information of the n uncompressed video format video data, acquire output video data, and display the output video data.
13. The apparatus of claim 12,
the receiving unit is also used for receiving control instruction information;
the determining unit is further configured to determine the type of the manipulation instruction information received by the receiving unit; the type of the control instruction information comprises the type of a global control instruction and the type of an independent control instruction;
the obtaining unit is further configured to obtain adjustment parameter information corresponding to the control instruction information, where the adjustment parameter information is related display information when the display device is instructed to display the first video data; the first video data is video data in an uncompressed video format corresponding to the control instruction information;
the processing unit is further configured to display first video data according to the control instruction information and the corresponding adjustment parameter information thereof when the type of the control instruction information is a type of a global control instruction, where the first video data is video data in n uncompressed video formats.
14. The apparatus of claim 12,
the determining unit is specifically configured to parse input formats of the n pieces of video data, and determine video formats of the m pieces of video data according to a parsing result when the input formats of the m pieces of video data are parsed; m is an integer greater than 0 and not greater than n;
the obtaining unit is specifically configured to obtain video information of video data in an uncompressed video format from the m pieces of video data when the determining unit analyzes the video data in the uncompressed video format from the m pieces of video data; alternatively, the first and second electrodes may be,
the determining unit is specifically configured to parse input formats of the n pieces of video data, and send a parsing request message carrying the f pieces of video data to the service device when the input formats of the f pieces of video data are not parsed; f is an integer which is more than 0 and not more than n, and the sum of f and m is n;
the receiving unit is further configured to receive configuration information of the f video data sent by the service device;
the determining unit is specifically configured to parse the input format of the f video data according to the configuration information of the f video data received by the receiving unit, and determine the video format of the f video data according to the parsing result;
the obtaining unit is specifically configured to obtain video information of the video data in the uncompressed video format from the f video data when the determining unit analyzes the video data in the uncompressed video format from the f video data.
15. The apparatus according to any one of claims 12 to 14,
the display information includes: displaying size information and position information; the video information includes: displaying the size information;
the processing unit is specifically configured to determine whether display size information in the display information of the video data in the n uncompressed video formats is the same as the display size information in the video information;
if the n uncompressed video formats are the same as each other, mixing the n uncompressed video formats of the video data and the background image data of the display device by using a preset mixing parameter according to display position information in the display information of the n uncompressed video formats of the video data to obtain output video data, and displaying the output video data; alternatively, the first and second electrodes may be,
if the display size information in the display information of the video data in at least one uncompressed video format is different from the display size information in the video information, performing scaling processing on the at least one video data according to the display size information in the display information of the at least one video data; and according to the display position information in the display information of the video data in the n uncompressed video formats, mixing the video data in the n uncompressed video formats and the background image data of the display equipment by using a preset mixing parameter to obtain output video data, and displaying the output video data.
16. The apparatus of claim 15,
the display information further includes: characteristic information of the data; the video information further includes: characteristic information of the data; the characteristic information of the data refers to display parameters of the video data when the display equipment displays the video data;
the processing unit is specifically configured to determine whether feature information of data in the display information of the video data in the n uncompressed video formats is the same as feature information of data in the video information;
if the feature information of the data in the display information of the video data in the n uncompressed video formats is the same as the feature information of the data in the video information, and the display size information in the display information of the video data in the n uncompressed video formats is the same as the display size information in the video information, mixing the video data in the n uncompressed video formats and the background image data of the display device by using a preset mixing parameter according to the display position information in the display information of the video data in the n uncompressed video formats to obtain output video data, and displaying the output video data; alternatively, the first and second electrodes may be,
if the characteristic information of the data in the display information of the video data in at least one uncompressed video format is different from the characteristic information of the data in the video information, adjusting the video data in at least one uncompressed video format according to the characteristic information of the data in the display information of the video data in at least one uncompressed video format, and performing mixing processing on the video data in n uncompressed video formats and the background image data of the display device by using preset mixing parameters according to the display position information in the display information of the video data in n uncompressed video formats when the characteristic information of the data in the display information of the video data in n uncompressed video formats is the same as the characteristic information of the data in the video information and the display size information in the display information of the video data in n uncompressed video formats is the same as the display size information in the video information, and acquiring output video data and displaying the output video data.
17. The apparatus of claim 11,
the processing unit is specifically configured to mix background video data and third video data by using a first preset mixing parameter according to display information of the third video data, and obtain mixed video data; wherein the third video data is video data other than background video data among the video data of the n uncompressed video formats;
and mixing the mixed video data and the background image data by using a second preset mixing parameter according to the display information of the background video data to obtain output video data, and displaying the output video data.
18. The apparatus of claim 13,
the determining unit is further configured to determine, when it is determined that the type of the control instruction information is an independent control instruction type, video data in an active state and video data corresponding to the control instruction information; the video data in the activated state refers to that the display information of the video data is in a controllable state;
the determining unit is further configured to determine whether the video data corresponding to the control instruction information is in an active state when the video data corresponding to the control instruction information is in a foreground state;
the processing unit is further configured to set the video data in the active state as a standby state and set the video data corresponding to the control instruction information as an active state when the determining unit determines that the video data corresponding to the control instruction information is not the video data in the active state; the video data in the standby state refers to that the display information of the video data is in an uncontrollable state;
displaying the first video data according to the control instruction information and the corresponding adjustment parameter information thereof, wherein the first video data is in an activated state; alternatively, the first and second electrodes may be,
when the determining unit determines that the video data corresponding to the control instruction information is the video data in the activated state, the first video data is displayed according to the adjustment parameter information in the control instruction information and the adjustment parameter information corresponding to the adjustment parameter information, wherein the first video data is the video data in the activated state.
19. The apparatus of claim 18,
the processing unit is further configured to set the video data corresponding to the control instruction information to a foreground state when the video data corresponding to the control instruction information is not in the foreground state.
20. The apparatus of claim 18 or 19,
the control instruction information includes: picture size zooming instruction information, or position moving instruction information, or picture rotation instruction information, or video switching instruction information;
the processing unit is specifically configured to, when the control instruction information includes: when the image size zooming instruction information is received, zooming the first video data according to the image size zooming instruction information and the corresponding adjusting parameter information thereof, and displaying the zoomed first video data; alternatively, the first and second electrodes may be,
the control instruction information comprises: when the position is moved, updating the display position information of the first video data according to the position movement instruction information and the corresponding adjustment parameter information thereof, and displaying the first video data according to the updated display position information; alternatively, the first and second electrodes may be,
the control instruction information comprises: when the image rotation instruction information is received, performing rotation processing on the first video data according to the image rotation instruction information and adjustment parameter information corresponding to the image rotation instruction information, and displaying the first video data after the rotation processing; alternatively, the first and second electrodes may be,
the control instruction information comprises: and when the video switching instruction information is received, displaying the first video data according to the adjustment parameter information corresponding to the video switching instruction information.
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