CN113411647A - Cloud director method, system, server and computer readable storage medium - Google Patents
Cloud director method, system, server and computer readable storage medium Download PDFInfo
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/21805—Source of audio or video content, e.g. local disk arrays enabling multiple viewpoints, e.g. using a plurality of cameras
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23602—Multiplexing isochronously with the video sync, e.g. according to bit-parallel or bit-serial interface formats, as SDI
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
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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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
- H04N21/6379—Control signals issued by the client directed to the server or network components directed to server directed to encoder, e.g. for requesting a lower encoding rate
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
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- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
Abstract
The invention discloses a cloud director method, a cloud director system, a server and a computer readable storage medium. The cloud broadcasting guide method comprises the steps of receiving a plurality of paths of video source signals, sending a low-code-stream video signal of a shuttle path to a playing terminal, enabling the playing terminal to play the plurality of paths of low-code-stream video signals, receiving a user selection signal sent by the playing terminal, obtaining a corresponding high-code-stream video signal according to the user selection signal, and sending the high-code-stream video signal to the corresponding playing terminal, so that a user can independently select a required low-code-stream video signal at the playing terminal to achieve independent machine position selection, the flexibility of cloud broadcasting guide is improved, and the diversity requirements of the user are met. In addition, the multi-path low-code-stream video signals are sent to the playing terminal for selection of a user, and compared with the traditional technology of sending high-code-stream signals, the method and the device for playing the video signals can reduce the pressure of bandwidth and time delay.
Description
This application is based on the application number: 202110426637.7 filed on and claiming priority from the chinese patent application having a filing date of 20/04 in 2021, the entire contents of which are incorporated herein by reference.
Technical Field
The present invention relates to the field of cloud director technologies, and in particular, to a cloud director method, a cloud director system, a server, and a computer-readable storage medium.
Background
In the traditional relay broadcasting, a plurality of machine positions are required to be erected on site, signals of the machine positions are transmitted to a relay broadcasting vehicle through an SDI (serial digital interface) physical line, and the direction broadcasting switching of the signals of the machine positions is carried out in the relay broadcasting vehicle. However, only one path of program signal is pushed to the internet platform in the conventional rebroadcasting mode, so that a user cannot independently select a video machine position, the video watching angle is limited, and the diversity requirement of the user cannot be met.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, a first object of the present invention is to provide a cloud director method.
A second object of the invention is to propose a computer-readable storage medium.
The third purpose of the invention is to provide a cloud director server.
The fourth purpose of the invention is to provide a cloud director system.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a cloud director method, which is characterized by including: receiving multiple paths of video source signals, wherein each path of video source signal comprises a high-code-stream video signal and a low-code-stream video signal; sending the multi-path low-code-stream video signals to a playing terminal so that the playing terminal plays the multi-path low-code-stream video signals; receiving a user selection signal sent by a playing terminal, wherein the user selection signal is generated by a user by conducting switching according to a plurality of paths of low-code-stream video signals; and acquiring a corresponding high-code-stream video signal according to the user selection signal, and sending the high-code-stream video signal to a corresponding playing terminal.
According to the cloud broadcasting method provided by the embodiment of the invention, the multi-channel video source signals are received, the shuttle-channel low-code-stream video signals are sent to the playing terminal, so that the playing terminal plays the multi-channel low-code-stream video signals, the user selection signals sent by the playing terminal are received, the corresponding high-code-stream video signals are obtained according to the user selection signals, and the high-code-stream video signals are sent to the corresponding playing terminal, so that a user can independently select the required low-code-stream video signals at the playing terminal to realize independent machine position selection, the flexibility of cloud broadcasting is improved, and the diversity requirements of the user are met. In addition, the multi-path low-code-stream video signals are sent to the playing terminal for selection of a user, and compared with the traditional technology of sending high-code-stream signals, the method and the device for playing the video signals can reduce the pressure of bandwidth and time delay.
According to an embodiment of the present invention, before sending the multiple low-stream video signals to the play terminal, the method further includes: sending the low-code-stream video signals to a broadcast guiding client so that the broadcast guiding client can obtain low-code-stream program signals from the low-code-stream video signals of the plurality of paths according to the switching guide signals; and receiving the low-code-stream program signal, and acquiring a corresponding high-code-stream program signal according to the low-code-stream program signal.
According to an embodiment of the present invention, sending multiple low-stream video signals to a play terminal includes: and sending the high-code-stream program signal and the multi-path low-code-stream video signal to a playing terminal.
According to one embodiment of the invention, the high-code-stream video signal and the low-code-stream video signal belonging to the same video source signal have a one-to-one mapping relationship.
According to an embodiment of the present invention, acquiring a corresponding high-stream program signal according to a low-stream program signal includes: and acquiring a corresponding high-code-stream program signal according to the low-code-stream program signal and the mapping relation between the high-code-stream video signal and the low-code-stream video signal.
According to one embodiment of the invention, each high-stream video signal and each low-stream video signal have timestamp information; after receiving the multiple video source signals, the method further comprises the following steps: and synchronizing the multiple paths of high-code-stream video signals based on the timestamp information of each path of high-code-stream video signals, and synchronizing the multiple paths of low-code-stream video signals based on the timestamp information of each path of low-code-stream video signals.
To achieve the above object, a second embodiment of the present invention provides a computer-readable storage medium, on which a cloud director program is stored, which, when executed by a processor, implements the foregoing cloud director method.
According to the computer-readable storage medium provided by the embodiment of the invention, through the cloud broadcasting method, a user can autonomously select a required low-code-stream video signal at a playing terminal to realize autonomous selection of a machine position, so that the flexibility of cloud broadcasting is improved, the diversity requirements of the user are met, and the user experience is improved. In addition, the method can reduce the pressure of bandwidth and reduce time delay by sending the multi-path low-code-stream video signals to the playing terminal for selection of a user compared with the traditional technology of sending high-code-stream signals.
To achieve the above object, a third embodiment of the present invention provides a cloud director server, including: the video streaming media service module is used for receiving multiple paths of video source signals, wherein each path of video source signal comprises a high-code-stream video signal and a low-code-stream video signal; the video signal control module is used for sending the multi-path low-code-stream video signals to the playing terminal so that the playing terminal plays the multi-path low-code-stream video signals, receiving a user selection signal sent by the playing terminal, acquiring corresponding high-code-stream video signals according to the user selection signal, and sending the high-code-stream video signals to the corresponding playing terminal, wherein the user selection signal is generated by the user by conducting switching according to the multi-path low-code-stream video signals.
According to the cloud director server provided by the embodiment of the invention, a plurality of paths of video source signals are received by the video streaming media service module, wherein each path of video source signal comprises a high-code stream video signal and a low-code stream video signal, the video distribution module is used for sending a plurality of paths of low-code stream video signals to the playing terminal, so that the playing terminal plays the multi-path low-code-stream video signals, receives the user selection signal sent by the playing terminal through the video signal control module, wherein, the user selection signal is generated by the user conducting switching according to the multi-path low-code-stream video signal, according to the user selection signal, obtaining the corresponding high code stream video signal and sending the high code stream video signal to the corresponding playing terminal, therefore, a user can independently select the required low-code-stream video signal at the playing terminal to realize the independent selection of the machine position, the flexibility of cloud broadcasting is improved, and the diversity requirements of the user are met. In addition, the multi-path low-code-stream video signals are sent to the playing terminal for selection of a user, and compared with the traditional technology of sending high-code-stream signals, the method and the device for playing the video signals can reduce the pressure of bandwidth and time delay. In addition, the multi-path high-code-stream video signals and the multi-path low-code-stream video signals are synchronized at the cloud guide broadcast server, and the synchronized low-code-stream video signals are sent to the playing terminal for selection of a user, so that the phenomena of blocking, black fields and the like after switching can be avoided, the fluency of video switching is improved, and the watching experience of the user is further improved.
According to an embodiment of the present invention, the video streaming service is further configured to send the low-stream video signal to the director client, so that the director client obtains a low-stream program signal from the multiple low-stream video signals according to the director switching signal; the video signal control module is also used for acquiring a corresponding high-code-stream program signal according to the low-code-stream program signal, and sending the high-code-stream program signal and the multiple paths of low-code-stream video signals to the playing terminal together.
According to one embodiment of the invention, the high-code-stream video signal and the low-code-stream video signal belonging to the same video source signal have a one-to-one mapping relationship.
According to an embodiment of the present invention, the video signal control module is specifically configured to obtain a corresponding high-stream program signal according to the low-stream program signal and a mapping relationship between the high-stream video signal and the low-stream video signal.
According to one embodiment of the invention, each video source signal has time stamp information; the video streaming media service module is also used for synchronizing the multi-path high-code-stream video signals based on the timestamp information of each path of high-code-stream video signals and synchronizing the multi-path low-code-stream video signals based on the timestamp information of each path of low-code-stream video signals after receiving the multi-path video source signals; the video signal control module is specifically configured to send each path of synchronized low-code-stream video signals to the play terminal.
In order to achieve the above object, a fourth aspect of the present invention provides a cloud broadcasting directing system, which includes the foregoing cloud broadcasting directing server, and the cloud broadcasting directing system further includes at least one encoder, a broadcasting directing client, and a playing terminal.
According to the cloud broadcasting guide system provided by the embodiment of the invention, through the cloud broadcasting guide server, a user can independently select a required low-code-stream video signal at the playing terminal to realize independent selection of a machine position, the flexibility of the cloud broadcasting guide is improved, and the diversity requirements of the user are met. In addition, the multi-path low-code-stream video signals are sent to the playing terminal for selection of a user, and compared with the traditional technology of sending high-code-stream signals, the method and the device for playing the video signals can reduce the pressure of bandwidth and time delay. In addition, the multi-path high-code-stream video signals and the multi-path low-code-stream video signals are synchronized at the cloud guide broadcast server, and the synchronized low-code-stream video signals are sent to the playing terminal for selection of a user, so that the phenomena of blocking, black fields and the like after switching can be avoided, the fluency of video switching is improved, and the watching experience of the user is further improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is an architecture diagram of a cloud director system according to an embodiment of the present invention;
fig. 2 is a flowchart of a cloud director method according to an embodiment of the present invention;
fig. 3 is an interaction diagram of a cloud director system according to an embodiment of the invention;
fig. 4 is a block diagram of a cloud director server according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As described in the background art, the conventional rebroadcasting method can only output one path of program signal to be pushed to the internet platform, and users cannot independently select video positions, so that the broadcasting guidance flexibility is poor. If the traditional way of outputting program signals by cloud broadcasting is directly copied to multiple channels of signals for selection by a user, the multiple channels of signals are directly pushed to a playing terminal of the user after being transmitted to a cloud broadcasting server by high-code-stream signals, so that huge bandwidth pressure is generated, and meanwhile, the direct rise of Network bandwidth, Content Delivery Network (CDN), and the like is caused, and the system is difficult to maintain. And traditional cloud director platform does not pass through signal synchronization, and the problem that multi-camera signal time is asynchronous will appear in user's multi-view position, if the multi-camera is asynchronous, can cause the broadcast card to pause, black field scheduling problem because asynchronous after the user selects the position, influence the user and watch experience.
In view of the above technical problems, the present application provides a cloud director method, a cloud director system, a server, and a computer readable storage medium, which enable a user to select a position autonomously, reduce bandwidth pressure, enable smooth playing, and improve viewing experience of the user.
A cloud director method, a system, a server, and a computer-readable storage medium according to embodiments of the present invention are described below with reference to the accompanying drawings.
In the present application, as shown with reference to fig. 1, the cloud director system includes a cloud director server 10, at least one video encoder 20, a director client 30, and a play terminal 40. Each video encoder 20 front end is connected with a video collector 60, and video collector 60 can be the high definition camera, and video collector 60 is used for gathering video source signal from different angles to the video source signal that will gather passes through SDI signal line and transmits to corresponding video encoder 20. The video encoder 20 encodes the received high definition video into a high code stream video signal and a low code stream video signal, respectively. The cloud director system further comprises a time service server 50, the time service server 50 is respectively connected with each video encoder 20, and the time service server 50 is used for providing time service for each video encoder 20. When the video encoder 20 encodes the received video source signal, time stamp information is respectively stamped on the high-code-stream video signal and the low-code-stream video signal obtained by encoding according to the time information. Each video encoder 20 transmits the encoded high-stream video signal and low-stream video signal to the cloud director server 10. The cloud director server 10 synchronizes the multiple paths of high-stream video signals and the multiple paths of low-stream video signals according to the timestamp information of the high-stream video signals and the low-stream video signals. The cloud director server 10 is further connected to the director client 30, and is configured to send the synchronized multiple paths of low-bit-stream video signals to the director client 30, so that a worker of the director client 30 performs programming based on the multiple paths of low-bit-stream video signals to output low-bit-stream program signals. The broadcast guide client 30 sends the low-code-stream program signal to the cloud broadcast guide server 10, and the cloud broadcast guide server 10 generates a corresponding high-code-stream program signal according to the low-code-stream program signal and sends the high-code-stream program signal to the play terminal 40. Meanwhile, the cloud broadcast guiding server 10 also sends each path of low-code-stream video signal to the playing terminal 40, so that the playing terminal 40 plays the high-code-stream program signal and the low-code-stream program signals of multiple machine positions, the audience can select the required machine position based on the low-code-stream program signals of the multiple machine positions, and the cloud broadcast guiding server 10 sends the corresponding high-code-stream signal according to the selection signal of the audience for the user to watch.
Fig. 2 is a flow diagram according to an embodiment of the invention, which may be performed by the cloud director server shown in fig. 1.
Referring to fig. 2, the method may include the steps of:
step S101, receiving multiple paths of video source signals, wherein each path of video source signal comprises a high-code-stream video signal and a low-code-stream video signal.
Specifically, a plurality of stations (i.e., image acquisition devices) acquire video source signals from different angles of a live broadcast site, and transmit the acquired video source signals to correspondingly connected video encoders, and each video encoder encodes the received video source signals respectively. In this embodiment, each video encoder includes a high stream coding module and a low stream coding module. The high code stream coding module is used for coding the received video source signals into high code stream video signals, and the low code stream coding module is used for coding the received video source signals of the same path into low code stream video signals. And each video encoder transmits the high-code-stream video signal and the low-code-stream video signal obtained by encoding to the cloud program director server.
And the cloud director server receives the high-code-stream video signals and the low-code-stream video signals of the multi-channel video source signals and then records and stores the high-code-stream video signals and the low-code-stream video signals.
And S102, sending the multi-path low-code-stream video signals to a playing terminal so that the playing terminal plays the multi-path low-code-stream video signals.
In one embodiment, before sending the multiple low-stream video signals to the play terminal, the method further includes: sending the low-code-stream video signals to a broadcast guiding client so that the broadcast guiding client can obtain low-code-stream program signals from the low-code-stream video signals of the plurality of paths according to the switching guide signals; and receiving the low-code-stream program signal, and acquiring a corresponding high-code-stream program signal according to the low-code-stream program signal.
Specifically, before sending the multiple paths of low-code-stream video signals to the playing terminal, the cloud director server also sends the obtained multiple paths of low-code-stream video signals to the director client. Further, a staff member at the director client may perform program signal production based on the received multiple low-stream video signals to generate low-stream program signals. The broadcasting guide client sends the low-code-stream program signal to the cloud broadcasting guide server, and the cloud broadcasting guide server generates a corresponding high-code-stream program signal according to the low-code-stream program signal.
In one embodiment, obtaining a corresponding high-code-stream program signal according to a low-code-stream program signal includes: and acquiring a corresponding high-code-stream program signal according to the low-code-stream program signal and the mapping relation between the high-code-stream video signal and the low-code-stream video signal.
Specifically, in this embodiment, a mapping relationship between high-stream video signals and low-stream video signals belonging to the same video source signal is one-to-one. Specifically, the video content of the high-stream video signal and the video content of the low-stream video signal are the same, and only the code rate is different between the high-stream video signal and the low-stream video signal. The high-code-stream video signal has a high code rate, high image definition and high occupied bandwidth. The low-code-stream video signal reduces the code rate in the image environment of the high-code-stream video signal, and the image picture of the low-code-stream video signal has higher definition and occupies less bandwidth. Therefore, after receiving the low-code-stream program signal, the cloud director server may obtain a corresponding high-code-stream program signal according to the mapping relationship.
Further, when the cloud broadcasting guide server outputs the video signal to the playing terminal, the cloud broadcasting guide server sends the high-code-stream program signal and the multiple paths of low-code-stream video signals to the playing terminal. When the playing terminal displays the high-code-stream program signal and the multi-path low-code-stream video signal, the high-code-stream program signal can be used as a main display, and the multi-path low-code-stream video signal can be used as an auxiliary display. In this embodiment, the cloud broadcast guiding server may send other low-code-stream video signals to the playing terminal except the low-code-stream video signal corresponding to the high-code-stream program signal, and may also send the low-code-stream video signals collected by all the image collecting devices to the playing terminal.
In one embodiment, before sending the low-stream video signal to the director client, the method further includes: and synchronizing the multiple paths of high-code-stream video signals based on the timestamp information of each path of high-code-stream video signals, and synchronizing the multiple paths of low-code-stream video signals based on the timestamp information of each path of low-code-stream video signals.
Specifically, the cloud director system comprises a time service server, and the time service server is respectively connected with each video encoder and used for providing time service for each video encoder. Each video encoder also comprises a time acquisition module which is used for acquiring time information from the time service server. When a high-code-stream coding module and a low-code-stream coding module in a video coder code a video source, timestamp information is respectively marked on a high-code-stream video signal and a low-code-stream video signal obtained by coding according to time information. Taking the high code stream encoding module as an example, when encoding a video source signal, the high code stream encoding module respectively stamps an absolute timestamp on each video frame according to the time information and the sequence of the video frames in the video source signal, and encodes the video source signal. The timestamp information for each video frame may include, among other things, the number of hours, minutes, seconds, and frames. The coding mode of the low code stream coding module is the same as that of the high code stream coding module. In this embodiment, the timestamp information of each frame in the high-stream video signal and the timestamp information of the corresponding frame in the low-stream video signal belonging to the same video source signal are the same.
Each video encoder sends the low-code-stream video signals and the high-code-stream video signals to the cloud directing server, so that the cloud directing server synchronizes each path of low-code-stream video signals according to the timestamp information of the low-code-stream video signals and synchronizes each path of high-code-stream video signals according to the timestamp information of the high-code-stream video signals. And then, the cloud broadcasting guide server sends the synchronized low-code-stream video signal to a broadcasting guide client so that a worker can make a program signal based on the synchronized low-code-stream video signal.
And when the cloud director server sends the low-code-stream video signal to the playing terminal, the synchronized low-code-stream video signal is sent to the playing terminal, and then a user can switch based on the synchronized low-code-stream video signal when the machine position needs to be switched, so that the problems of a black field and the like are prevented.
And step S103, receiving a user selection signal sent by the playing terminal, wherein the user selection signal is generated by the user by conducting switching according to the multi-path low-code-stream video signal.
Specifically, after the cloud director server sends the high-code-stream program signal and the multiple paths of low-code-stream video signals to the playing terminal, the user can select a required angle based on the low-code-stream video signals. It will be appreciated that the video signal angle captured by each station is different. When a user watches the video, if the currently main displayed high code stream program signal is not the favorite angle of the user, the user can also select one path from the auxiliary displayed low code stream video signals according to the self requirement. And after receiving the user selection signal, the playing terminal sends the user selection signal to the cloud directing server so that the cloud directing server conducts directing cutting according to the user selection signal.
And step S104, acquiring corresponding high-code-stream video signals according to the user selection signals, and sending the high-code-stream video signals to corresponding playing terminals.
Specifically, the cloud director server obtains a corresponding high-code-stream video signal according to the user selection signal. For example, if the live broadcast site includes four machine positions, that is, machine position 1, machine position 2, machine position 3, and machine position 4, the currently played high-code-stream program signal is a video signal acquired by machine position 3, and when the user needs to watch the video signal of machine position 1, the user clicks the low-code-stream video signal corresponding to machine position 1 at the broadcast terminal. After receiving the user selection signal, the cloud director server acquires a high-code-stream video signal corresponding to the machine position 1, and pushes the high-code-stream video signal to the playing terminal. The playing terminal plays the high-code video signal selected by the user as a main display, and plays the low-code-stream video signals corresponding to the machine position 2, the machine position 3 and the machine position 4 as an auxiliary display.
In the cloud broadcasting method provided by the embodiment, the multi-channel video source signal is received, the low-code-stream video signal of the shuttle channel is sent to the playing terminal, so that the playing terminal plays the multi-channel low-code-stream video signal, the user selection signal sent by the playing terminal is received, the corresponding high-code-stream video signal is obtained according to the user selection signal, and the high-code-stream video signal is sent to the corresponding playing terminal, so that a user can autonomously select the required low-code-stream video signal at the playing terminal to realize autonomous selection of a machine position, the flexibility of cloud broadcasting is improved, and the diversity requirements of the user are met. In addition, the multi-path low-code-stream video signals are sent to the playing terminal for selection of a user, and compared with the traditional technology of sending high-code-stream signals, the method and the device for playing the video signals can reduce the pressure of bandwidth and time delay.
A cloud director method provided by one embodiment of the present invention is described below with reference to fig. 3:
step S301, a cloud director server receives high-code-stream video signals and low-code-stream video signals with timestamp information, which are pushed by a plurality of video encoders;
step S302, the cloud director server synchronizes a plurality of paths of high-code-stream video signals and a plurality of paths of low-code-stream video signals based on timestamp information;
step S303, the cloud director server sends the multi-path low-code-stream video signals to the director client;
step S304, the broadcast guiding client generates a low-code-stream program signal based on the switching signal and sends the low-code-stream program signal to the cloud broadcast guiding server;
step S305, the cloud broadcasting guide server generates a high code stream program signal according to the low code stream program signal;
step S306, sending the high code stream program signal and the multi-path low code stream video signal to a playing terminal;
step S307, receiving a user selection signal sent by the playing terminal, wherein the user selection signal is a signal generated by a user based on selection of a plurality of paths of low-code-stream video signals;
step S308, acquiring a corresponding high-code-stream video signal according to the user selection signal;
step S309, sending the high code stream video signal selected by the user to the playing terminal.
In the cloud broadcasting method provided by the embodiment, the multi-channel video source signal is received, the low-code-stream video signal of the shuttle channel is sent to the playing terminal, so that the playing terminal plays the multi-channel low-code-stream video signal, the user selection signal sent by the playing terminal is received, the corresponding high-code-stream video signal is obtained according to the user selection signal, and the high-code-stream video signal is sent to the corresponding playing terminal, so that a user can autonomously select the required low-code-stream video signal at the playing terminal to realize autonomous selection of a machine position, the flexibility of cloud broadcasting is improved, and the diversity requirements of the user are met. In addition, the multi-path low-code-stream video signals are sent to the playing terminal for selection of a user, and compared with the traditional technology of sending high-code-stream signals, the method and the device for playing the video signals can reduce the pressure of bandwidth and time delay. In addition, the multi-path high-code-stream video signals and the multi-path low-code-stream video signals are synchronized at the cloud director client, and the synchronized low-code-stream video signals are sent to the playing terminal for selection of a user, so that the phenomena of blocking, black fields and the like after switching can be avoided, the fluency of video switching is improved, and the watching experience of the user is further improved.
Further, another embodiment of the present application provides a computer-readable storage medium having stored thereon a cloud director program, which when executed by a processor, implements the aforementioned cloud director method.
According to the computer readable storage medium, through the cloud broadcasting guide method, a user can independently select a required low-code-stream video signal at the playing terminal to realize independent selection of a machine position, the flexibility of the cloud broadcasting guide is improved, the diversity requirements of the user are met, and the user experience is improved. In addition, the method can reduce the pressure of bandwidth and reduce time delay by sending the multi-path low-code-stream video signals to the playing terminal for selection of a user compared with the traditional technology of sending high-code-stream signals.
As shown in fig. 3, another embodiment of the present application provides a cloud director server including a video streaming service module 110, a video distribution module 120, and a video signal control module 130. The video streaming media service module 110 is configured to receive multiple video source signals, where each video source signal includes a high-stream video signal and a low-stream video signal. The video distribution module 120 is configured to send the multiple low-bit-stream video signals to the playing terminal, so that the playing terminal plays the multiple low-bit-stream video signals. The video signal control module 130 is configured to receive a user selection signal sent by a playing terminal, where the user selection signal is generated by a user performing a pilot switching according to a plurality of low-stream video signals, and according to the user selection signal, obtain a corresponding high-stream video signal and send the high-stream video signal to the corresponding playing terminal.
In one embodiment, the video streaming service module 110 is further configured to send the low-stream video signal to the broadcast guiding client, so that the broadcast guiding client obtains the low-stream program signal from the multiple low-stream video signals according to the switching signal. The video signal control module 130 is further configured to obtain a corresponding high-code-stream program signal according to the low-code-stream program signal.
In one embodiment, a mapping relationship between high-stream video signals and low-stream video signals belonging to the same video source signal is one-to-one. The video signal control module 130 is specifically configured to obtain a corresponding high-code-stream program signal according to the low-code-stream program signal and a mapping relationship between the high-code-stream video signal and the low-code-stream video signal.
In one embodiment, the video signal control module 130 is further configured to send the high stream program signal and the multiple low stream video signals to the play terminal.
In one embodiment, each video source signal has time stamp information. The video streaming media service module 110 is further configured to synchronize the multiple high-stream video signals based on the timestamp information of each high-stream video signal and synchronize the multiple low-stream video signals based on the timestamp information of each low-stream video signal after receiving the multiple video source signals.
In one embodiment, the video signal control module 130 is specifically configured to send each path of synchronized low-stream video signals to a play terminal.
In one embodiment, the cloud director server further includes a cloud platform distribution module, one end of the cloud platform distribution module is connected to the video streaming media service module, and the other end of the cloud platform distribution module is connected to the video signal control module, and the cloud platform distribution module is configured to receive the synchronized high-code-stream video signal from the video streaming media service module and send the synchronized high-code-stream video signal to the video signal control module. The cloud platform distribution module is also used for carrying out distribution management based on the platform distribution requirement.
It should be noted that, for the description of the cloud director server in the present application, please refer to the description of the cloud director method in the present application, and details are not repeated here.
The cloud director server receives a plurality of paths of video source signals through the video streaming media service module, wherein each path of video source signal comprises a high-code-stream video signal and a low-code-stream video signal, the video distribution module sends the multi-path low-code-stream video signals to the playing terminal so that the playing terminal plays the multi-path low-code-stream video signals, the video signal control module receives the user selection signals sent by the playing terminal, wherein, the user selection signal is generated by the user conducting switching according to the multi-path low-code-stream video signal, according to the user selection signal, obtaining the corresponding high code stream video signal and sending the high code stream video signal to the corresponding playing terminal, therefore, a user can independently select the required low-code-stream video signal at the playing terminal to realize the independent selection of the machine position, the flexibility of cloud broadcasting is improved, and the diversity requirements of the user are met. In addition, the multi-path low-code-stream video signals are sent to the playing terminal for selection of a user, and compared with the traditional technology of sending high-code-stream signals, the method and the device for playing the video signals can reduce the pressure of bandwidth and time delay. In addition, the multi-path high-code-stream video signals and the multi-path low-code-stream video signals are synchronized at the cloud guide broadcast server, and the synchronized low-code-stream video signals are sent to the playing terminal for selection of a user, so that the phenomena of blocking, black fields and the like after switching can be avoided, the fluency of video switching is improved, and the watching experience of the user is further improved.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (13)
1. A cloud director method, comprising:
receiving multiple paths of video source signals, wherein each path of video source signal comprises a high-code-stream video signal and a low-code-stream video signal;
sending the low-code-stream video signals to a playing terminal so that the playing terminal plays the low-code-stream video signals in multiple paths;
receiving a user selection signal sent by the playing terminal, wherein the user selection signal is generated by a user according to the multi-path low-code-stream video signal through switching;
and acquiring a corresponding high-code-stream video signal according to the user selection signal, and sending the high-code-stream video signal to the corresponding playing terminal.
2. The cloud director method according to claim 1, wherein before sending the low-stream video signals to the play terminal, the method further comprises:
sending the low-code-stream video signals to a broadcast guiding client so that the broadcast guiding client can obtain low-code-stream program signals from the low-code-stream video signals of the plurality of paths according to the switching guiding signals;
and receiving the low-code-stream program signal, and acquiring a corresponding high-code-stream program signal according to the low-code-stream program signal.
3. The cloud director method according to claim 2, wherein sending the low-stream video signals to a play terminal comprises:
and sending the high-code-stream program signal and the plurality of paths of low-code-stream video signals to the playing terminal.
4. The cloud director method according to claim 1, wherein there is a one-to-one mapping relationship between high-stream video signals and low-stream video signals belonging to the same video source signal.
5. The cloud director method according to claim 4, wherein said obtaining a corresponding high-code stream program signal according to the low-code stream program signal comprises:
and acquiring a corresponding high-code-stream program signal according to the low-code-stream program signal and the mapping relation between the high-code-stream video signal and the low-code-stream video signal.
6. The cloud director method of claim 1, wherein each of the high stream video signals and each of the low stream video signals have timestamp information;
after receiving the plurality of video source signals, the method further comprises:
and synchronizing the multiple paths of high-code-stream video signals based on the timestamp information of each path of high-code-stream video signals, and synchronizing the multiple paths of low-code-stream video signals based on the timestamp information of each path of low-code-stream video signals.
7. A computer-readable storage medium having stored thereon a cloud director program that, when executed by a processor, implements the cloud director method as recited in any one of claims 1-6.
8. A cloud director server, comprising:
the video streaming media service module is used for receiving multiple paths of video source signals, wherein each path of video source signal comprises a high-code-stream video signal and a low-code-stream video signal;
the video signal control module is used for sending the multi-path low-code-stream video signals to a playing terminal so that the playing terminal plays the multi-path low-code-stream video signals, receiving a user selection signal sent by the playing terminal, acquiring corresponding high-code-stream video signals according to the user selection signal, and sending the high-code-stream video signals to the corresponding playing terminal, wherein the user selection signal is generated by a user by conducting switching according to the multi-path low-code-stream video signals.
9. The cloud director server of claim 8, wherein the video streaming media service is further configured to send the low-stream video signal to a director client, so that the director client obtains a low-stream program signal from multiple low-stream video signals according to a director switching signal;
the video signal control module is further used for acquiring a corresponding high-code-stream program signal according to the low-code-stream program signal, and sending the high-code-stream program signal and a plurality of paths of low-code-stream video signals to the playing terminal together.
10. The cloud director server of claim 9, wherein a one-to-one mapping relationship exists between high-stream video signals and low-stream video signals belonging to the same video source signal.
11. The cloud director server of claim 10, wherein the video signal control module is specifically configured to obtain the corresponding high-stream program signal according to the low-stream program signal and a mapping relationship between the high-stream video signal and the low-stream video signal.
12. The cloud director server of claim 9, wherein each of the video source signals has timestamp information;
the video streaming media service module is also used for synchronizing the multi-path high-code-stream video signals based on the timestamp information of each path of high-code-stream video signals and synchronizing the multi-path low-code-stream video signals based on the timestamp information of each path of low-code-stream video signals after receiving the multi-path video source signals;
the video signal control module is specifically configured to send each path of synchronized low-code-stream video signals to a play terminal.
13. A cloud director system comprising the cloud director server of any one of claims 8-12, the cloud director system further comprising at least one encoder, a director client, and a cast terminal.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114339302A (en) * | 2021-12-31 | 2022-04-12 | 咪咕文化科技有限公司 | Broadcasting guide method, device, equipment and computer storage medium |
| CN114630134A (en) * | 2022-03-04 | 2022-06-14 | 北京奇艺世纪科技有限公司 | Processing method and system for newly added code stream |
| CN114697710A (en) * | 2022-04-22 | 2022-07-01 | 卡莱特云科技股份有限公司 | Server-based material preview method, device, system, equipment and medium |
| EP4336825A1 (en) * | 2022-09-09 | 2024-03-13 | EVS Broadcast Equipment SA | Integrated video production system and method for video production |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1404302A (en) * | 2001-09-05 | 2003-03-19 | 北京中科大洋科技发展股份有限公司 | TV program making system and method with double-bit rate video stream |
| EP2469881A1 (en) * | 2010-12-22 | 2012-06-27 | Samsung Electronics Co., Ltd. | Cloud computing based video service and playing methods |
| CN102802054A (en) * | 2012-08-14 | 2012-11-28 | 广州盈可视电子科技有限公司 | Control method and device used in multi-stream live video broadcast |
| CN106572355A (en) * | 2016-11-02 | 2017-04-19 | 乐视控股（北京）有限公司 | Multi-channel video live streaming method and system |
| CN107231564A (en) * | 2017-05-31 | 2017-10-03 | 广州华多网络科技有限公司 | A kind of net cast method, live broadcast system and direct broadcast server |
| CN112004102A (en) * | 2020-08-03 | 2020-11-27 | 杭州当虹科技股份有限公司 | Multi-camera picture synchronization method based on IP live stream |
| CN112601097A (en) * | 2021-03-02 | 2021-04-02 | 中国传媒大学 | Double-coding cloud broadcasting method and system |
-
2021
- 2021-06-04 CN CN202110626283.0A patent/CN113411647A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1404302A (en) * | 2001-09-05 | 2003-03-19 | 北京中科大洋科技发展股份有限公司 | TV program making system and method with double-bit rate video stream |
| EP2469881A1 (en) * | 2010-12-22 | 2012-06-27 | Samsung Electronics Co., Ltd. | Cloud computing based video service and playing methods |
| CN102802054A (en) * | 2012-08-14 | 2012-11-28 | 广州盈可视电子科技有限公司 | Control method and device used in multi-stream live video broadcast |
| CN106572355A (en) * | 2016-11-02 | 2017-04-19 | 乐视控股（北京）有限公司 | Multi-channel video live streaming method and system |
| CN107231564A (en) * | 2017-05-31 | 2017-10-03 | 广州华多网络科技有限公司 | A kind of net cast method, live broadcast system and direct broadcast server |
| CN112004102A (en) * | 2020-08-03 | 2020-11-27 | 杭州当虹科技股份有限公司 | Multi-camera picture synchronization method based on IP live stream |
| CN112601097A (en) * | 2021-03-02 | 2021-04-02 | 中国传媒大学 | Double-coding cloud broadcasting method and system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114339302A (en) * | 2021-12-31 | 2022-04-12 | 咪咕文化科技有限公司 | Broadcasting guide method, device, equipment and computer storage medium |
| CN114630134A (en) * | 2022-03-04 | 2022-06-14 | 北京奇艺世纪科技有限公司 | Processing method and system for newly added code stream |
| CN114630134B (en) * | 2022-03-04 | 2023-08-04 | 北京奇艺世纪科技有限公司 | Processing method and system for newly added code stream |
| CN114697710A (en) * | 2022-04-22 | 2022-07-01 | 卡莱特云科技股份有限公司 | Server-based material preview method, device, system, equipment and medium |
| CN114697710B (en) * | 2022-04-22 | 2023-08-18 | 卡莱特云科技股份有限公司 | Material preview method, device, system, equipment and medium based on server |
| EP4336825A1 (en) * | 2022-09-09 | 2024-03-13 | EVS Broadcast Equipment SA | Integrated video production system and method for video production |
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