CN113596583A - Video stream bullet time data processing method and device - Google Patents
Video stream bullet time data processing method and device Download PDFInfo
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- CN113596583A CN113596583A CN202110898707.9A CN202110898707A CN113596583A CN 113596583 A CN113596583 A CN 113596583A CN 202110898707 A CN202110898707 A CN 202110898707A CN 113596583 A CN113596583 A CN 113596583A
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- 238000003672 processing method Methods 0.000 title claims description 17
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 238000004590 computer program Methods 0.000 claims description 14
- 238000004806 packaging method and process Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 description 14
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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 or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
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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
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44213—Monitoring of end-user related data
- H04N21/44222—Analytics of user selections, e.g. selection of programs or purchase activity
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Abstract
The embodiment of the application provides a method and a device for processing video stream bullet time data, wherein the method comprises the following steps: receiving a video stream file sent by a server, and decoding the video stream file to obtain a video frame picture, wherein the video stream file is obtained by continuously shooting through a plurality of cameras sitting around a circle; displaying a first grid area of each video frame picture through a player, playing a corresponding video frame picture to a corresponding grid area after receiving a screen sliding signal sent by a user, and determining a current display area after monitoring that the user releases fingers; the bullet shooting method and the bullet shooting device can continuously shoot through a plurality of cameras which sit around one circle, each frame of picture is a picture with different angles, a large picture is spliced in real time, each frame of picture contains pictures with all angles at the moment, and bullet time can be displayed at any moment.
Description
Technical Field
The application relates to the field of video processing, in particular to a method and a device for processing video stream bullet time data.
Background
The traditional bullet time is that a plurality of cameras are used for shooting a static picture at a certain moment and then the static picture is converted into a rotating video; fixed rotation order, from left to right, or from right to left.
Disclosure of Invention
The method and the device can continuously shoot by a plurality of cameras around a circle, each frame of picture is a picture with different angles, a large picture is spliced in real time, each frame of picture contains pictures with all angles at the moment, and bullet time can be displayed at any moment (any frame).
In order to solve at least one of the above problems, the present application provides the following technical solutions:
in a first aspect, the present application provides a method for processing bullet time data of a video stream, including:
receiving a video stream file sent by a server, and decoding the video stream file to obtain a video frame picture, wherein the video stream file is obtained by continuously shooting through a plurality of cameras sitting around a circle;
displaying a first square grid area of each video frame picture through a player, playing the corresponding video frame picture to the corresponding square grid area after receiving a screen sliding signal sent by a user, and determining the current display area after monitoring that the user releases fingers.
Further, still include:
and compressing and packaging each frame of video data into an mp4 or ts file through a preset h264 algorithm.
In a second aspect, the present application provides a video stream bullet time data processing apparatus comprising:
the video streaming file receiving module is used for receiving a video streaming file sent by a server and decoding the video streaming file to obtain a video frame picture, wherein the video streaming file is obtained by continuously shooting by a plurality of cameras sitting round;
the video streaming file compression module is used for displaying a first square grid area of each video frame picture through the player, playing the corresponding video frame picture to the corresponding square grid area after receiving a screen sliding signal sent by a user, and determining the current display area after monitoring that the user releases fingers.
Further, still include:
and the compression and packaging unit is used for compressing and packaging each frame of video data into an mp4 or ts file through a preset h264 algorithm.
In a third aspect, the present application provides an electronic device, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the video stream bullet time data processing method when executing the program.
In a fourth aspect, the present application provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the video stream bullet time data processing method described herein.
According to the technical scheme, the method and the device for processing the bullet time data of the video stream are characterized in that a plurality of cameras which sit around a circle are used for continuously shooting, each frame of picture is a picture with different angles, a large picture is spliced in real time, each frame of picture contains pictures with all angles at the moment, and the bullet time can be displayed at any moment (any frame).
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart of a video stream bullet time data processing method according to an embodiment of the present application;
fig. 2 is a block diagram of a video stream bullet time data processing apparatus in an embodiment of the present application;
fig. 3 is a schematic structural diagram of an electronic device in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
Considering the traditional bullet time, a plurality of cameras are used for shooting a static picture at a certain moment and then are converted into a rotating video; the method and the device have the advantages that a plurality of cameras around a circle continuously shoot, each frame of picture is a picture with different angles, a large picture is spliced in real time, each frame of picture contains the picture with all angles at the moment, and bullet time can be displayed at any time (any frame).
In order to continuously shoot by a plurality of cameras around a circle, each frame of picture is a picture with different angles, a large picture is spliced in real time, each frame of picture comprises a picture with all angles at the moment, and bullet time can be displayed at any time (any frame), the application provides an embodiment of a video stream bullet time data processing method, and referring to fig. 1, the video stream bullet time data processing method specifically comprises the following contents:
step S101: the method comprises the steps of receiving a video stream file sent by a server, decoding the video stream file to obtain a video frame picture, wherein the video stream file is obtained by continuously shooting through a plurality of cameras sitting around one circle.
Optionally, the method can continuously shoot by a plurality of cameras around a circle, each frame of picture is a picture with different angles, a large picture is spliced in real time, and each frame of picture contains the picture with all angles at the moment, so that bullet time can be displayed at any time (any frame); each frame of data is compressed and packaged into an mp4 or ts file through an h264 algorithm for server retransmission; support more than 4, 8, 16, 32 cameras and the like.
Step S102: displaying a first square grid area of each video frame picture through a player, playing the corresponding video frame picture to the corresponding square grid area after receiving a screen sliding signal sent by a user, and determining the current display area after monitoring that the user releases fingers.
Optionally, the player app (installed on the mobile phone or on the smart television) of the present application receives a ts stream or an mp4 file through a network, decodes the stream file into a frame of picture, and the ordinary player will display the whole picture, and the player only displays a first square area of each frame of picture, and when a finger slides on the mobile phone screen (or the television clicks a direction key), the app receives a sliding signal and knows that the frame of picture is currently played, and displays each square of the frame of picture on the screen, and the user feels that the video is fixed and at a rotation angle, and when the user releases the finger, the player determines that the current square is displayed, and the subsequent playing is fixed in the display area.
As can be seen from the above description, the method for processing video stream bullet time data provided in the embodiment of the present application can continuously capture images by a plurality of cameras around a circle, each frame of the image is an image with a different angle, and a large image is assembled in real time, so that each frame of the image includes images with all angles at this time, and thus, the bullet time can be displayed at any time (any frame).
In an embodiment of the method for processing time data of a video stream bullet, the following may be further included:
and compressing and packaging each frame of video data into an mp4 or ts file through a preset h264 algorithm.
In order to continuously shoot by a plurality of cameras around a circle, each frame of picture is a picture with different angles, a large picture is spliced in real time, each frame of picture comprises a picture with all angles at the moment, and bullet time can be displayed at any moment (any frame), the application provides an embodiment of a video stream bullet time data processing device for realizing all or part of the content of the video stream bullet time data processing method, and the video stream bullet time data processing device specifically comprises the following contents, with reference to fig. 2:
the video streaming file receiving module 10 is configured to receive a video streaming file sent by a server, and decode the video streaming file to obtain a video frame picture, where the video streaming file is obtained by continuously shooting with multiple cameras sitting around one circle;
the video stream file compression module 20 is configured to display a first square area of each video frame through the player, play a corresponding video frame to the corresponding square area after receiving a screen sliding signal sent by a user, and determine a current display area after monitoring that the user releases a finger.
As can be seen from the above description, the video stream bullet time data processing apparatus provided in the embodiments of the present application can continuously capture images by a plurality of cameras around a circle, each frame of the image is an image with a different angle, and a large image is assembled in real time, so that each frame of the image includes an image with all angles at this time, and thus, the bullet time can be displayed at any time (any frame).
In an embodiment of the apparatus for processing video stream bullet time data of the present application, the following contents are further included:
and the compression and packaging unit is used for compressing and packaging each frame of video data into an mp4 or ts file through a preset h264 algorithm.
To further explain the present solution, the present application further provides a specific application example of the method for implementing video stream bullet time data processing by using the video stream bullet time data processing apparatus, which specifically includes the following contents:
the shooting scheme of the application is as follows: continuously shooting by a plurality of cameras around a circle, wherein each frame of picture is a picture with different angles, and a large picture is spliced in real time, so that each frame of picture contains the picture with all angles at the moment, and bullet time can be displayed at any moment (any frame); each frame of data is compressed and packaged into an mp4 or ts file through an h264 algorithm for server retransmission; support more than 4, 8, 16, 32 cameras and the like.
The playing scheme of the application is as follows: when the player app (installed on the mobile phone or the smart television) receives a ts stream or an mp4 file through a network, the stream file is decoded into a frame of picture, a common player can display the whole picture, the player only displays a first square area of each frame of picture, when a finger slides on the screen of the mobile phone (or the television clicks a direction key), the app receives a sliding signal and knows that the frame of picture is played currently, each square of the frame of picture is displayed on the screen, the user feels that the video is fixed and rotates, when the user releases the finger, the player determines that the current square is displayed, and the subsequent playing is fixed in the display area.
Therefore, the user can decide to look at the picture at the angle at a certain moment.
In terms of hardware, in order to continuously capture images by a plurality of cameras sitting around a circle, each frame of image is an image with different angles, and a large image is formed in real time, so that each frame of image contains an image with an angle at the moment, and the bullet time can be displayed at any time (any one frame), the application provides an embodiment of an electronic device for implementing all or part of the content in the video stream bullet time data processing method, and the electronic device specifically includes the following contents:
a processor (processor), a memory (memory), a communication Interface (Communications Interface), and a bus; the processor, the memory and the communication interface complete mutual communication through the bus; the communication interface is used for realizing information transmission between the video stream bullet time data processing device and relevant equipment such as a core service system, a user terminal, a relevant database and the like; the logic controller may be a desktop computer, a tablet computer, a mobile terminal, and the like, but the embodiment is not limited thereto. In this embodiment, the logic controller may be implemented with reference to the embodiment of the video stream bullet time data processing method and the embodiment of the video stream bullet time data processing apparatus in the embodiment, and the contents thereof are incorporated herein, and repeated descriptions are omitted.
It is understood that the user terminal may include a smart phone, a tablet electronic device, a network set-top box, a portable computer, a desktop computer, a Personal Digital Assistant (PDA), an in-vehicle device, a smart wearable device, and the like. Wherein, intelligence wearing equipment can include intelligent glasses, intelligent wrist-watch, intelligent bracelet etc..
In practical applications, part of the video stream bullet time data processing method may be performed on the electronic device side as described above, or all operations may be performed in the client device. The selection may be specifically performed according to the processing capability of the client device, the limitation of the user usage scenario, and the like. This is not a limitation of the present application. The client device may further include a processor if all operations are performed in the client device.
The client device may have a communication module (i.e., a communication unit), and may be communicatively connected to a remote server to implement data transmission with the server. The server may include a server on the task scheduling center side, and in other implementation scenarios, the server may also include a server on an intermediate platform, for example, a server on a third-party server platform that is communicatively linked to the task scheduling center server. The server may include a single computer device, or may include a server cluster formed by a plurality of servers, or a server structure of a distributed apparatus.
Fig. 3 is a schematic block diagram of a system configuration of an electronic device 9600 according to an embodiment of the present application. As shown in fig. 3, the electronic device 9600 can include a central processor 9100 and a memory 9140; the memory 9140 is coupled to the central processor 9100. Notably, this FIG. 3 is exemplary; other types of structures may also be used in addition to or in place of the structure to implement telecommunications or other functions.
In one embodiment, the video stream bullet time data processing method function may be integrated into the central processor 9100. The central processor 9100 may be configured to control as follows:
step S101: the method comprises the steps of receiving a video stream file sent by a server, decoding the video stream file to obtain a video frame picture, wherein the video stream file is obtained by continuously shooting through a plurality of cameras sitting around one circle.
Step S102: displaying a first square grid area of each video frame picture through a player, playing the corresponding video frame picture to the corresponding square grid area after receiving a screen sliding signal sent by a user, and determining the current display area after monitoring that the user releases fingers.
As can be seen from the above description, the electronic device provided in the embodiment of the present application continuously captures images by multiple cameras sitting around a circle, each frame of image is an image at a different angle, and a large image is assembled in real time, so that each frame of image includes images at all angles at this time, and thus, the bullet time can be displayed at any time (any frame).
In another embodiment, the video stream bullet time data processing means may be configured separately from the central processor 9100, for example, the video stream bullet time data processing means may be configured as a chip connected to the central processor 9100, and the video stream bullet time data processing method function is realized by the control of the central processor.
As shown in fig. 3, the electronic device 9600 may further include: a communication module 9110, an input unit 9120, an audio processor 9130, a display 9160, and a power supply 9170. It is noted that the electronic device 9600 also does not necessarily include all of the components shown in fig. 3; further, the electronic device 9600 may further include components not shown in fig. 3, which may be referred to in the art.
As shown in fig. 3, a central processor 9100, sometimes referred to as a controller or operational control, can include a microprocessor or other processor device and/or logic device, which central processor 9100 receives input and controls the operation of the various components of the electronic device 9600.
The memory 9140 can be, for example, one or more of a buffer, a flash memory, a hard drive, a removable media, a volatile memory, a non-volatile memory, or other suitable device. The information relating to the failure may be stored, and a program for executing the information may be stored. And the central processing unit 9100 can execute the program stored in the memory 9140 to realize information storage or processing, or the like.
The input unit 9120 provides input to the central processor 9100. The input unit 9120 is, for example, a key or a touch input device. Power supply 9170 is used to provide power to electronic device 9600. The display 9160 is used for displaying display objects such as images and characters. The display may be, for example, an LCD display, but is not limited thereto.
The memory 9140 can be a solid state memory, e.g., Read Only Memory (ROM), Random Access Memory (RAM), a SIM card, or the like. There may also be a memory that holds information even when power is off, can be selectively erased, and is provided with more data, an example of which is sometimes called an EPROM or the like. The memory 9140 could also be some other type of device. Memory 9140 includes a buffer memory 9141 (sometimes referred to as a buffer). The memory 9140 may include an application/function storage portion 9142, the application/function storage portion 9142 being used for storing application programs and function programs or for executing a flow of operations of the electronic device 9600 by the central processor 9100.
The memory 9140 can also include a data store 9143, the data store 9143 being used to store data, such as contacts, digital data, pictures, sounds, and/or any other data used by an electronic device. The driver storage portion 9144 of the memory 9140 may include various drivers for the electronic device for communication functions and/or for performing other functions of the electronic device (e.g., messaging applications, contact book applications, etc.).
The communication module 9110 is a transmitter/receiver 9110 that transmits and receives signals via an antenna 9111. The communication module (transmitter/receiver) 9110 is coupled to the central processor 9100 to provide input signals and receive output signals, which may be the same as in the case of a conventional mobile communication terminal.
Based on different communication technologies, a plurality of communication modules 9110, such as a cellular network module, a bluetooth module, and/or a wireless local area network module, may be provided in the same electronic device. The communication module (transmitter/receiver) 9110 is also coupled to a speaker 9131 and a microphone 9132 via an audio processor 9130 to provide audio output via the speaker 9131 and receive audio input from the microphone 9132, thereby implementing ordinary telecommunications functions. The audio processor 9130 may include any suitable buffers, decoders, amplifiers and so forth. In addition, the audio processor 9130 is also coupled to the central processor 9100, thereby enabling recording locally through the microphone 9132 and enabling locally stored sounds to be played through the speaker 9131.
Embodiments of the present application further provide a computer-readable storage medium capable of implementing all steps in the video stream bullet time data processing method of the foregoing embodiments, where the execution subject is a server or a client, and the computer-readable storage medium stores thereon a computer program, and when being executed by a processor, the computer program implements all steps of the video stream bullet time data processing method of the foregoing embodiments, for example, when the processor executes the computer program, the processor implements the following steps:
step S101: the method comprises the steps of receiving a video stream file sent by a server, decoding the video stream file to obtain a video frame picture, wherein the video stream file is obtained by continuously shooting through a plurality of cameras sitting around one circle.
Step S102: displaying a first square grid area of each video frame picture through a player, playing the corresponding video frame picture to the corresponding square grid area after receiving a screen sliding signal sent by a user, and determining the current display area after monitoring that the user releases fingers.
As can be seen from the above description, the computer-readable storage medium provided in the embodiments of the present application continuously captures images by multiple cameras around a circle, each frame of the images is a different-angle image, and a large image is assembled in real time, so that each frame of the images contains images at all angles at this time, and thus the bullet time can be displayed at any time (any frame).
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (6)
1. A method for processing video stream bullet time data, the method comprising:
receiving a video stream file sent by a server, and decoding the video stream file to obtain a video frame picture, wherein the video stream file is obtained by continuously shooting through a plurality of cameras sitting around a circle;
displaying a first square grid area of each video frame picture through a player, playing the corresponding video frame picture to the corresponding square grid area after receiving a screen sliding signal sent by a user, and determining the current display area after monitoring that the user releases fingers.
2. The video stream bullet time data processing method of claim 1, further comprising:
and compressing and packaging each frame of video data into an mp4 or ts file through a preset h264 algorithm.
3. A video stream bullet time data processing apparatus, comprising:
the video streaming file receiving module is used for receiving a video streaming file sent by a server and decoding the video streaming file to obtain a video frame picture, wherein the video streaming file is obtained by continuously shooting by a plurality of cameras sitting round;
the video streaming file compression module is used for displaying a first square grid area of each video frame picture through the player, playing the corresponding video frame picture to the corresponding square grid area after receiving a screen sliding signal sent by a user, and determining the current display area after monitoring that the user releases fingers.
4. The video stream bullet time data processing apparatus of claim 3, further comprising:
and the compression and packaging unit is used for compressing and packaging each frame of video data into an mp4 or ts file through a preset h264 algorithm.
5. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the video stream bullet time data processing method according to any of claims 1 to 2 are implemented by the processor when executing said program.
6. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for processing video stream bullet time data according to any one of claims 1 to 2.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115174957A (en) * | 2022-06-27 | 2022-10-11 | 咪咕文化科技有限公司 | Bullet screen calling method and device, computer equipment and readable storage medium |
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| CN111447461A (en) * | 2020-05-20 | 2020-07-24 | 上海科技大学 | Synchronous switching method, device, equipment and medium for multi-view live video |
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| CN111355967A (en) * | 2020-03-11 | 2020-06-30 | 叠境数字科技（上海）有限公司 | Video live broadcast processing method, system, device and medium based on free viewpoint |
| CN111447461A (en) * | 2020-05-20 | 2020-07-24 | 上海科技大学 | Synchronous switching method, device, equipment and medium for multi-view live video |
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| CN115174957A (en) * | 2022-06-27 | 2022-10-11 | 咪咕文化科技有限公司 | Bullet screen calling method and device, computer equipment and readable storage medium |
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