CN111246253B - Video streaming method and device - Google Patents
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- CN111246253B CN111246253B CN202010073161.9A CN202010073161A CN111246253B CN 111246253 B CN111246253 B CN 111246253B CN 202010073161 A CN202010073161 A CN 202010073161A CN 111246253 B CN111246253 B CN 111246253B
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 80
- 238000004891 communication Methods 0.000 claims abstract description 57
- 238000012545 processing Methods 0.000 claims abstract description 37
- 238000004590 computer program Methods 0.000 claims description 7
- 230000003139 buffering effect Effects 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003707 image sharpening Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
- H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
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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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
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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
- H04N21/643—Communication protocols
- H04N21/6437—Real-time Transport Protocol [RTP]
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Information Transfer Between Computers (AREA)
Abstract
The invention provides a video stream transmission method and a video stream transmission device, which relate to the technical field of data transmission and comprise the steps of sending a request for establishing communication transmission connection to a Content Delivery Network (CDN) node; and after the communication transmission connection is successfully established, sending mixing data obtained by performing mixing processing operation on the video stream data to the content delivery network CDN node, wherein the starting time point of the mixing processing operation does not occur after the time point of sending the establishment request of the communication transmission connection, and the mixing processing operation is not performed after the communication transmission connection request, so that the transmission delay is reduced, and seamless transmission is realized.
Description
Technical Field
The present invention relates to the field of data transmission technologies, and in particular, to a video stream transmission method and apparatus.
Background
The explosion of the live broadcast industry brings opportunities to the CDN (Content Delivery Network) live broadcast service. The main modes of live broadcasting are: the stream pusher pushes the live stream to a CDN edge node (edge streaming server) through an RTMP (Real Time messaging protocol) protocol; the CDN edge node provides services such as RTMP, HTTP (HyperText Transfer Protocol) + FLV (Flash video), HLS (HTTP Live Streaming) and the like to the client player through distribution.
The current video streaming mode is: after the connection is established by the CDN, the mixing server performs mixing processing to generate a mixing file, and then sends the mixing file to the CDN. However, the mixing server usually needs to perform mixing operation on larger-scale data, and then there is a certain time delay after the CDN connection is established, and the CDN mistakenly recognizes that the connection has a fault, which causes unsmooth video data stream transmission.
Disclosure of Invention
The invention aims to provide a video stream transmission method and a video stream transmission device, which can reduce transmission delay and realize seamless transmission by not performing mixing processing operation after a communication transmission connection request.
In a first aspect, an embodiment provides a video streaming method, including:
sending a request for establishing communication transmission connection to a CDN node of a content delivery network;
and after the communication transmission connection is successfully established, sending mixing data obtained by performing mixing processing operation on video stream data to the CDN node of the content delivery network, wherein the mixing processing operation does not occur after sending an establishment request of the communication transmission connection.
In an alternative embodiment, the step of sending a request for establishing a communication transport connection to a CDN node of a content distribution network includes:
firstly, performing frequency mixing processing operation on video stream data to obtain frequency mixing data;
and then sending a request for establishing communication transmission connection to the CDN node of the content delivery network.
In an optional embodiment, before the step of sending, to the CDN node of the content delivery network, mixing data obtained by performing a mixing processing operation on video stream data, the method further includes:
and buffering the mixing data.
In an alternative embodiment, the step of sending a request for establishing a communication transport connection to a CDN node of a content distribution network includes:
and when the mixed data is obtained by carrying out the mixing processing operation on the video stream data, sending a request for establishing a communication transmission connection to a Content Distribution Network (CDN) node.
In an alternative embodiment, the step of performing a mixing process operation on the video stream data to obtain mixed data includes:
and carrying out mixing operation on video frames at the same time in the video stream data from at least one acquisition device to obtain mixing data.
In an alternative embodiment, the method further comprises:
and receiving a request for establishing the communication transmission connection sent by the CDN node.
In an alternative embodiment, the mix data is used for the client to simultaneously display video stream data from at least one capture device.
In a second aspect, an embodiment provides a video streaming apparatus, including:
the request establishing module is used for sending a communication transmission connection establishing request to a Content Delivery Network (CDN) node;
and the mixing transmission module is used for sending mixing data obtained by performing mixing processing operation on video stream data to the CDN node of the content delivery network after the communication transmission connection is successfully established, wherein the mixing processing operation does not occur after the establishment request of the communication transmission connection is sent.
In a third aspect, an embodiment provides an electronic device, including a memory, a processor, and a program stored on the memory and capable of running on the processor, where the processor implements the video streaming method according to any one of the foregoing embodiments when executing the program.
In a fourth aspect, embodiments provide a computer-readable storage medium, in which a computer program is stored, and the computer program is executed to implement the video streaming method according to any one of the foregoing embodiments.
The embodiment of the invention provides a video transmission method and a video transmission device, which are used for realizing the transmission of video stream data by sending a communication transmission connection establishment request to a Content Delivery Network (CDN) node and sending mixing data obtained by carrying out mixing processing operation on the video stream data to the content delivery network CDN node after the communication transmission connection is successfully established, wherein in order to ensure the seamless transmission of the video stream data and reduce the time delay, the mixing processing operation does not occur after the communication transmission connection establishment request is sent.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a video streaming method according to an embodiment of the present invention;
fig. 2 is a functional block diagram of a video streaming apparatus according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a hardware architecture of an electronic device according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, because a mixing server usually deals with large-scale data, mixing data is generated only after a connection is established, and during this time delay, the CDN may misunderstand that the connection has a fault, resulting in unsmooth transmission of a data stream.
Based on this, the video stream transmission method and apparatus provided in the embodiments of the present invention may reduce transmission delay and implement seamless transmission by performing mixing processing operation not after a communication transmission connection request.
To facilitate understanding of the embodiment, a detailed description will be given of a video streaming method disclosed in the embodiment of the present invention.
Fig. 1 is a flowchart of a video streaming method according to an embodiment of the present invention.
Referring to fig. 1, a video streaming method provided by an embodiment may be applied to a server side, and the method may include at least the following steps:
step S102, sending a request for establishing communication transmission connection to a CDN node of a content distribution network;
step S104, after the communication transmission connection is successfully established, sending, to a content delivery network CDN node, mixing data obtained by performing a mixing processing operation on video stream data, where a starting time point of the mixing processing operation does not occur after a time point of sending an establishment request of the communication transmission connection.
In a preferred embodiment of practical application, the transmission of the video stream data is implemented by sending a request for establishing a communication transmission connection to a CDN node of a content delivery network, and sending, after the communication transmission connection is successfully established, mixed data obtained by performing a mixing processing operation on the video stream data to the CDN node of the content delivery network, where the mixing processing operation does not occur after the request for establishing the communication transmission connection is sent in order to ensure seamless transmission of the video stream data and reduce delay.
In an alternative embodiment, the step S102 may be implemented by the following steps:
step 1.1), firstly, carrying out frequency mixing processing operation on video stream data to obtain frequency mixing data;
step 1.2), a request for establishing communication transmission connection is sent to a Content Distribution Network (CDN) node.
Here, the frequency mixing operation is performed on the video stream data, and the establishment of the communication transmission connection is performed after the frequency mixing operation is completed, so as to avoid a time delay of the frequency mixing operation performed on the video stream after the communication transmission connection is established.
In an optional embodiment, before step S102, the method further includes:
and 2.1) caching the mixing data.
The frequency-mixed data can be cached in a database, and after the communication transmission connection is established, the frequency-mixed data can be called from the cached database.
In an alternative embodiment, step S102 may be implemented by the following steps:
and 3.1) when the frequency mixing data is obtained by carrying out frequency mixing processing operation on the video stream data, sending a request for establishing a communication transmission connection to a Content Distribution Network (CDN) node.
Here, in order to improve the data transmission efficiency, it is also possible to transmit a request for establishing a communication transmission connection while performing a mixing operation on the video stream data, and at this time, after the connection is successfully established, it is possible to perform real-time transmission of the mixed data, that is, the mixed data transmitted in real time through the communication transmission connection does not correspond to the entire video stream data but is generated in real time and is a part of the entire video stream data.
In an alternative embodiment, the step of performing the mixing processing operation on the video stream data in step S104 to obtain the mixed data includes:
and 4.1) carrying out frequency mixing operation on video frames at the same time in the video stream data from at least one acquisition device to obtain frequency mixing data.
Here, the video stream data may come from different cameras or servers, and in an actual live scene, it may be necessary to simultaneously display a game scene picture and a portrait picture captured by the cameras at the same time on one page.
In an alternative embodiment, the mix data is used for the client to simultaneously display video stream data from at least one capture device.
It is understood that the video stream data herein may be from the same user client or multiple different user clients.
As an optional embodiment, for the same user client, the mixing data may be acquired by multiple acquisition devices simultaneously or by selecting any one of the acquisition devices, for example, the user a acquires video data of the user a through a first acquisition device and acquires game operation data in the user a client through a second acquisition device, or the user B acquires video data of the user B through an intelligent device having front and rear cameras, and the user B may select any one of the cameras to acquire. Here, the number of cameras of the smart device is not limited to two.
In an alternative embodiment, the method further comprises:
and step 5.1), receiving the communication transmission connection establishment request sent by the CDN node.
As an optional embodiment, the mixing server establishes a connection with a content delivery network CDN node according to an establishment request sent by the content delivery network CDN node, and pushes mixed mixing data to the content delivery network CDN node. The user client side sends the data request to the CDN node, the CDN node analyzes the data request and sends an analysis verification passing signal to the user client side, and the user client side actively pulls the mixing data from the CDN node or pushes the mixing data to the user client side according to an actual protocol.
As an optional embodiment, the mixing server establishes a connection with a content delivery network CDN node according to an establishment request sent by the content delivery network CDN node, performs mixing operation at the same time, and pushes mixing data to the content delivery network CDN node. The user client side sends the data request to the CDN node, the CDN node analyzes the data request and sends an analysis verification passing signal to the user client side, and the user client side actively pulls the mixing data from the CDN node or pushes the mixing data to the user client side according to an actual protocol.
As shown in fig. 2, an embodiment of the present invention provides a video streaming apparatus, including:
the request establishing module is used for sending a communication transmission connection establishing request to a Content Delivery Network (CDN) node;
and the mixing transmission module is used for sending mixing data obtained by performing mixing processing operation on video stream data to the CDN node of the content delivery network after the communication transmission connection is successfully established, wherein the mixing processing operation does not occur after the establishment request of the communication transmission connection is sent.
In an optional embodiment, the request establishing module is further specifically configured to perform a mixing processing operation on the video stream data to obtain mixing data; and then sending a request for establishing communication transmission connection to the CDN node of the content delivery network.
In an optional embodiment, the request establishing module is further specifically configured to cache the mixed data obtained by performing a mixing processing operation on video stream data before sending the mixed data to the content delivery network CDN node.
In an optional embodiment, the request establishing module is further specifically configured to send, when the mixed data is obtained by performing a mixing processing operation on the video stream data, an establishment request of a communication transmission connection to a content delivery network CDN node.
In an optional embodiment, the mixing transmission module is further specifically configured to perform mixing operation on video frames at the same time in the video stream data from the at least one capturing device to obtain mixing data.
In an optional embodiment, the request establishing module is further specifically configured to receive an establishment request of the communication transmission connection, where the establishment request is sent by the CDN node.
In an alternative embodiment, the mix data is used for the client to simultaneously display video stream data from at least one capture device.
In this embodiment, the electronic device may be, but is not limited to, a Computer device with analysis and processing capabilities, such as a Personal Computer (PC), a notebook Computer, a monitoring device, and a server.
As an exemplary embodiment, referring to fig. 3, an electronic device 300 includes a communication interface 301, a processor 302, a memory 303, and a bus 304, the processor 302, the communication interface 301, and the memory 303 being connected by the bus 304; the memory 303 is used for storing a computer program for supporting the processor 302 to execute the image sharpening method, and the processor 302 is configured to execute the program stored in the memory 303.
A machine-readable storage medium as referred to herein may be any electronic, magnetic, optical, or other physical storage device that can contain or store information such as executable instructions, data, and the like. For example, the machine-readable storage medium may be: a RAM (random Access Memory), a volatile Memory, a non-volatile Memory, a flash Memory, a storage drive (e.g., a hard drive), any type of storage disk (e.g., an optical disk, a dvd, etc.), or similar storage medium, or a combination thereof.
The non-volatile medium may be non-volatile memory, flash memory, a storage drive (e.g., a hard drive), any type of storage disk (e.g., an optical disk, dvd, etc.), or similar non-volatile storage medium, or a combination thereof.
It can be understood that, for the specific operation method of each functional module in this embodiment, reference may be made to the detailed description of the corresponding step in the foregoing method embodiment, and no repeated description is provided herein.
The computer-readable storage medium provided in the embodiments of the present invention stores a computer program, and when executed, the computer program code may implement the video streaming method according to any of the above embodiments, and for specific implementation, reference may be made to the method embodiment, which is not described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
Claims (9)
1. A video streaming method, comprising:
sending a request for establishing communication transmission connection to a CDN node of a content delivery network;
after the communication transmission connection is successfully established, sending mixing data obtained by performing mixing processing operation on video stream data to the content delivery network CDN node, wherein a starting time point of the mixing processing operation does not occur after a time point of sending an establishment request of the communication transmission connection;
the method for establishing the communication transmission connection comprises the following steps of sending a request for establishing the communication transmission connection to a CDN node of a content delivery network, wherein the step comprises the following steps:
when the mixed data obtained by the mixing processing operation is performed on the video stream data, a request for establishing a communication transmission connection is sent to a Content Distribution Network (CDN) node, wherein the mixed data transmitted through the communication transmission connection in real time does not correspond to the whole video stream data, but the mixed data generated in real time belongs to a part of the whole video stream data.
2. The video streaming method according to claim 1, wherein the step of sending a request for establishing a communication transport connection to a Content Delivery Network (CDN) node comprises:
firstly, performing frequency mixing processing operation on video stream data to obtain frequency mixing data;
and then sending a request for establishing communication transmission connection to the CDN node of the content delivery network.
3. The video streaming method according to claim 2, wherein the step of sending the mixing data obtained by performing the mixing processing operation on the video streaming data to the content delivery network CDN node further comprises:
and buffering the mixing data.
4. The video streaming method according to claim 1, wherein the step of performing mixing processing operation on the video stream data to obtain mixing data includes:
and carrying out mixing operation on video frames at the same time in the video stream data from at least one acquisition device to obtain mixing data.
5. The video streaming method of claim 1, wherein the method further comprises:
and receiving a request for establishing the communication transmission connection sent by the CDN node.
6. The video streaming method of claim 4, wherein the mix data is used for a client to simultaneously display video stream data from at least one capture device.
7. A video streaming apparatus, comprising:
the request establishing module is used for sending a communication transmission connection establishing request to a Content Delivery Network (CDN) node;
a mixing transmission module, configured to send, to the content delivery network CDN node, mixing data obtained by performing mixing processing operation on video stream data after the communication transmission connection is successfully established, where the mixing processing operation does not occur after the request for establishing the communication transmission connection is sent;
the request establishment module is further configured to: when the mixed data obtained by the mixing processing operation is performed on the video stream data, a request for establishing a communication transmission connection is sent to a Content Distribution Network (CDN) node, wherein the mixed data transmitted through the communication transmission connection in real time does not correspond to the whole video stream data, but the mixed data generated in real time belongs to a part of the whole video stream data.
8. An electronic device comprising a memory, a processor and a program stored on the memory and executable on the processor, the processor implementing the video streaming method of any of claims 1 to 6 when executing the program.
9. A computer-readable storage medium, characterized in that a computer program is stored in the readable storage medium, which computer program, when executed, implements the video streaming method according to any of claims 1-6.
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