CN112383574B - Web-based interactive streaming media dual-channel transmission method, system and storage medium - Google Patents
Web-based interactive streaming media dual-channel transmission method, system and storage medium Download PDFInfo
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- CN112383574B CN112383574B CN202110059405.2A CN202110059405A CN112383574B CN 112383574 B CN112383574 B CN 112383574B CN 202110059405 A CN202110059405 A CN 202110059405A CN 112383574 B CN112383574 B CN 112383574B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
Abstract
The invention discloses a web-based interactive streaming media dual-channel transmission method, a system and a computer-readable storage medium, wherein the method comprises the following steps: the method comprises the steps that an interactive streaming media dual-channel transmission protocol is adopted to carry out transmission between a client and a server, the interactive streaming media dual-channel transmission protocol is integrated into a streaming media channel and a data channel, the streaming media channel adopts the streaming media protocol to transmit streaming media data, and the data channel adopts the data channel protocol to transmit commands or other data; and specifies the establishment and closing process of the streaming media channel and the data channel. The invention encapsulates the stream media channel and the data channel, abstracts the encapsulated stream media channel and the abstracts the encapsulated stream media channel to form a universal extensible interactive stream media two-channel transmission protocol realized on Web, thereby meeting the requirements of bidirectional real-time interaction, being compatible with the prior Web technology and.
Description
Technical Field
The invention relates to a web-based interactive streaming media dual-channel transmission method, a system and a computer-readable storage medium, belonging to the field of streaming media transmission.
Background
Interactive streaming media, which means that besides streaming media video, video-related control instructions and other data (such as machine vision identification information, subtitles, barrages, scripts and the like) capable of being transmitted in two directions are supported.
The streaming media transmission protocol based on Web has the following types:
HLS (HTTP Live streaming), which is a HTTP-based streaming media network transport protocol proposed by apple inc. It works by dividing the entire stream into small HTTP-based files for downloading, only a portion of each time.
The HTTP-FLV/WS-FLV protocol, FLV (flash video) is a video format promoted by Adobe, and is a storage container format for transmitting streaming media data on the network. The HTTP-FLV encapsulates the streaming media into FLV format, and then transmits the FLV format to the client through the HTTP protocol. And the WS-FLV seals the streaming media into an FLV format and transmits the streaming media to the client through a WebSocket protocol.
Other proprietary protocols based on the WebSocket can be self-defined proprietary protocols, and the streaming media proprietary protocol is converted into the WebSocket protocol for transmission.
The above streaming media transmission protocols on the Web have the following disadvantages for the application of interactive streaming media on the Web:
the HLS protocol has larger delay and cannot meet real-time interactivity;
the streaming media protocol supported by the plug-in extension can transmit interactive information except video, but the browser plug-in has the compatibility problem of a platform and a browser, and a mobile platform generally does not support the browser extension.
Other proprietary protocols based on WebSocket are poor in universality and are not supported by standard video players.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a web-based interactive streaming media dual-channel transmission method, a system and a computer readable storage medium, and the specific scheme is as follows:
a web-based interactive streaming media two-channel transmission method is characterized in that the method adopts an interactive streaming media two-channel transmission protocol to carry out transmission between a client and a server, the interactive streaming media two-channel transmission protocol integrates a streaming media channel and a data channel, the streaming media channel adopts a streaming media protocol to transmit streaming media data, and the data channel adopts a data channel protocol to transmit commands or other data; and specifies the establishment and closing process of the streaming media channel and the data channel.
The method further comprises: and packaging the streaming media channel and the data channel, abstracting the packaging into a logic interface, and forming a universal extensible interactive streaming media two-channel transmission protocol realized on Web.
The method further comprises: the streaming media protocol adopted by the streaming media channel is HTTP-FLV/WS-FLV protocol, and the connection adopting the HTTP-FLV/WS-FLV protocol is responsible for streaming media data transmission; the data channel protocol is a WebSocket protocol, and the connection of the WebSocket protocol is used for transmission of interactive commands and data.
The method further comprises: the interactive streaming media dual-channel transmission protocol comprises an interactive streaming media dual-channel establishing method, a data channel calling and replying method and an interactive logic channel closing method, wherein the interactive logic channel comprises a data channel and a streaming media channel.
The method further comprises: the interactive streaming media double-channel establishing method comprises an interactive streaming media single-channel establishing process and an interactive streaming media double-channel establishing process.
The method further comprises: the interactive streaming media two-channel transmission protocol compatible interactive streaming media single-channel mode comprises the following steps:
and step 61, the client initiates a request to the server according to the used streaming media protocol. The adopted protocol [ protocol ] can be http/https or ws/wss protocol;
step 62, after receiving the request, the server pushes streaming media data to the client.
The method further comprises: the interactive streaming media dual-channel transmission protocol is compatible with the interactive streaming media dual-channel mode and comprises the following steps:
step 71, the client side initiates a data channel request to the server by using a WebSocket protocol, and the adopted protocol [ protocol ] can support a ws/wss protocol;
step 72, after receiving the request, the server distributes ID [ ID ] to the client, and sends a "shakeHandle" message to the client;
step 73, after receiving the 'shakeHandle' message, the client sets URI request parameters for the client [ ID ] according to a used streaming media protocol, and initiates a streaming media channel request to the server;
step 74, after receiving the streaming media channel request, the server sends an "open" message to the client to notify the client that the interactive streaming media channel creation is successful, and the client may prepare to receive streaming media data or send an interactive command;
step 75, the server pushes the streaming media data to the client;
step 76, the server sends data to the client;
at this stage, both the client and the server are free to initiate data channel messages.
The method further comprises: the data channel calling and replying process comprises the following steps:
step 81, a sender initiates a call message, a message event is [ event ], an protocol library automatically allocates an ID to a call message as [ event _ ID ], and the sender simultaneously associates a callback processing process [ callback ] with [ event _ ID ];
step 82, after receiving the [ event ] message, the receiver replies a reply message, and fills [ event _ id ] data in the reply message;
step 83, after receiving the reply message, the call message sender searches for a [ callback ] process associated with each other according to [ event _ id ], and calls the [ callback ] process to process the reply message;
the sender may be a client or a server, and the receiver may be a server or a client.
The method further comprises: the interactive logic channel closing process comprises the following steps:
step 91, when any one of the client and the server closes the session, a "close" message is sent to the other party;
step 92, the sender who actively initiates the "close" message then directly closes the data channel and the streaming media channel;
step 93, after receiving the "close" message, the receiver directly closes the data channel and the streaming media channel;
the sender may be a client or a server, and the receiver may be a server or a client.
The invention also discloses: a web-based interactive streaming media dual channel transmission system, comprising: a client and a server; wherein the web-based interactive streaming media dual-channel transmission system is used for realizing the web-based interactive streaming media dual-channel transmission method.
The invention also discloses: 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 web-based interactive streaming media dual channel transmission method.
The invention has the beneficial effects that:
interchangeability: the bidirectional real-time interaction requirement is met, and various interaction data such as machine vision identification information, scripts, subtitle data, playing control commands and the like can be transmitted.
Compatibility: the method supports the existing Web technology and is suitable for any existing browser platform; the method is compatible with the existing streaming media protocol, and does not need to plug in or convert the protocol; existing streaming media protocol players are supported.
Expansibility: the protocol is a general data container protocol, and can define and expand the application protocol according to the actual application requirements.
Drawings
Fig. 1 is a schematic diagram of a web-based interactive streaming media dual-channel transmission method according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a single channel mode of an interactive streaming media dual channel transport protocol compatible streaming media according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of an interactive streaming media dual channel transmission protocol compatible streaming media dual channel mode according to an embodiment of the present invention.
FIG. 4 is a diagram illustrating a data channel call and reply process according to an embodiment of the present invention.
FIG. 5 is a diagram illustrating a closing process of an interactive logical channel according to an embodiment of the present invention.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Some concepts involved in the description of the technical solution of the present invention are as follows:
the stream media channel: and establishing a connection through the HTTP-FLV/WS-FLV protocol for transmitting the streaming media data.
Data channel: and the WebSocket connection is established independently of the streaming media channel and is used for transmitting interactive commands or other data.
Streaming media channel protocol: the streaming media channel protocol adopted by the scheme is an HTTP-FLV/WS-FLV protocol, the HTTP-FLV is based on an HTTP protocol, and the WS-FLV is based on a WebSocket protocol. They are unidirectional transport stream media data.
Data channel protocol: the format and rules of the data channel for transmitting data are defined.
Interactive streaming media two-channel transmission protocol: integrating the stream media channel and the data channel, transmitting the stream media data by using a stream media protocol, and transmitting commands or other data by using a data channel protocol; and establishing and closing processes of the streaming media channel and the data channel are specified.
Message: a data channel sends one piece of data at a time called a message, and the data channel protocol defines the message format. The messages are of the following three types:
send message (send message): and sending a message to the opposite side of the channel without requiring the opposite side to reply.
Call message (call message): and sending a message to the opposite side of the channel, and requiring the opposite side to return a response message.
Reply message (reply message): and after receiving the call message of the opposite side, returning a response message to the opposite side.
Message event: message events are used to distinguish the type of service to which a message is associated, with different messages being processed by different service logic. Message events are divided into two categories:
system events: the system event is used for the mutual communication information between the client and the server in the process of establishing and closing the connection of the interactive streaming media dual-channel, and is the system reserved event.
User events: and besides the system event and some reserved events, the message event is customized by the user.
A client: a client initiates a connection request to a server to request service; the client may be either a sender or a recipient.
A server: the server waits for a client service request; the server may be either the sender or the recipient.
The sender: a message is initiated proactively and in case of a call message a callback function or a response event needs to be provided in order to wait for receipt of a reply message.
The receiver: the receiver defines a callback function for an event in order to receive the message sent by the sender regarding the event. If the message is a call message, the receiver needs to return a reply message to the sender after receiving the message.
As shown in fig. 1, the implementation principle of the technical solution of the present invention is as follows: and adding a new WebSocket connection based on the HTTP-FLV/WS-FLV protocol. The HTTP-FLV/WS-FLV connection is responsible for streaming media data transmission, the newly added WebSocket connection is used for interactive command and data transmission, the streaming media channel and the data channel are packaged and abstracted into a logic interface, and a universal extensible interactive streaming media two-channel transmission protocol realized on Web is formed.
Referring to table 1, the data channel protocol is defined as follows: the data channel protocol defines the format and meaning of each field required by the data channel to transmit data, and the scheme does not make specific requirements on binary expression.
TABLE 1
The interactive streaming media double-channel establishing method comprises an interactive streaming media single-channel establishing process and an interactive streaming media double-channel establishing process.
As shown in fig. 2, the interactive streaming media dual channel transmission protocol compatible interactive streaming media single channel mode comprises the following steps:
And 2, after receiving the request, the server pushes the streaming media data to the client.
As shown in fig. 3, the interactive streaming media dual channel transmission protocol is compatible with the interactive streaming media dual channel mode, which includes the following steps:
And 2, after receiving the request, the server distributes ID [ ID ] to the client, and sends a 'shakeHandle' message to the client.
And 3, after receiving the 'shakeHandle' message, the client sets URI request parameters for the client [ ID ] according to a used streaming media protocol, and initiates a streaming media channel request to the server.
And 4, after receiving the streaming media channel request, the server sends an open message to the client to inform the client that the interactive streaming media channel can be successfully established, and the client can prepare to receive streaming media data and can also send an interactive command.
And 5, the server pushes the streaming media data to the client.
And 6, the server sends data to the client.
At this stage, both the client and the server are free to initiate data channel messages.
As shown in fig. 4, the data channel invoking and replying process includes the following steps:
And 2, after receiving the [ event ] message, the receiver replies to the reply message and fills [ event _ id ] data in the reply message.
And 3, after receiving the replay message, the call message sender searches for a mutually associated [ callback ] process according to [ event _ id ] and calls the [ callback ] process to process the replay message.
The sender may be a client or a server, and the receiver may be a server or a client.
As shown in FIG. 5, the interactable logical channel closure process includes the steps of:
And 2, the sender actively initiating the close message directly closes a data channel and a streaming media channel.
And 3, directly closing the data channel and the streaming media channel after the receiver receives the close message.
The sender may be a client or a server, and the receiver may be a server or a client. The interactive logical channels include a data channel and a streaming media channel.
Referring to fig. 1, according to an embodiment of the present invention, there is also disclosed a web-based interactive streaming media dual channel transmission system, the system including: a client and a server; wherein the system is used for realizing the web-based interactive streaming media dual-channel transmission method.
According to an embodiment of the present invention, a computer-readable storage medium is also disclosed, on which a computer program is stored, which, when being executed by a processor, implements the steps of the web-based interactive streaming media dual-channel transmission method.
The invention provides a Web-based interactive streaming media two-channel transmission method, a system and a computer readable storage medium, which encapsulate a streaming media channel and a data channel, abstract the streaming media channel and the data channel into a logic interface, form a universal extensible interactive streaming media two-channel transmission protocol realized on Web, meet the requirement of bidirectional real-time interaction, are compatible with the prior Web technology and have extensibility.
Each functional unit in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a ReRAM, an MRAM, a PCM, a NAND Flash, a NOR Flash, a Memory, a magnetic disk, an optical disk, or other various media that can store program codes.
The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (4)
1. A web-based interactive streaming media two-channel transmission method is characterized in that the method adopts an interactive streaming media two-channel transmission protocol to carry out transmission between a client and a server, the interactive streaming media two-channel transmission protocol integrates a streaming media channel and a data channel, the streaming media channel adopts a streaming media protocol to transmit streaming media data, and the data channel adopts a data channel protocol to transmit commands or other data; packaging the streaming media channel and the data channel, abstracting to a logic interface, and forming a universal extensible interactive streaming media two-channel transmission protocol realized on the web; the streaming media protocol adopted by the streaming media channel is HTTP-FLV/WS-FLV protocol, and the connection adopting the HTTP-FLV/WS-FLV protocol is responsible for streaming media data transmission; the data channel protocol is a WebSocket protocol, and the connection of the WebSocket protocol is used for transmission of interactive commands and data; establishing and closing processes of a streaming media channel and a data channel are specified;
the interactive streaming media dual-channel transmission protocol comprises an interactive streaming media dual-channel establishing method, a data channel calling and replying method and an interactive logic channel closing method, wherein the interactive logic channel comprises a data channel and a streaming media channel;
the interactive streaming media double-channel establishing method comprises an interactive streaming media single-channel establishing process and an interactive streaming media double-channel establishing process;
the interactive streaming media single channel establishing process comprises the following steps:
step 61, the client side sends a request to the server according to the used streaming media protocol, and the adopted protocol [ protocol ] is http/https or ws/wss;
step 62, after receiving the request, the server pushes streaming media data to the client;
the interactive streaming media dual-channel establishment process comprises the following steps:
step 71, the client side initiates a data channel request to the server by using a WebSocket protocol, and the adopted protocol [ protocol ] supports a ws/wss protocol;
step 72, after receiving the request, the server distributes ID [ ID ] to the client, and sends a "shakeHandle" message to the client;
step 73, after receiving the 'shakeHandle' message, the client sets the client [ ID ] as a URI request parameter according to a used streaming media protocol, and initiates a streaming media channel request to the server;
step 74, after receiving the streaming media channel request, the server sends an "open" message to the client to notify the client that the interactive streaming media channel creation is successful, and the client is ready to receive streaming media data or send an interactive command;
step 75, the server pushes the streaming media data to the client;
step 76, the server sends data to the client;
at this stage, both the client and the server are free to initiate data channel messages;
the method for closing the interactive logic channel comprises the following steps:
step 91, when any one of the client and the server closes the session, a "close" message is sent to the other party;
step 92, the sender who initiatively initiates the "close" message then directly closes the data channel and the streaming media channel;
step 93, after receiving the "close" message, the receiver directly closes the data channel and the streaming media channel;
the sender is a client or a server, and the receiver is a server or a client.
2. The web-based interactive streaming media dual channel transmission method as claimed in claim 1, wherein the data channel calling and replying method comprises the steps of:
step 81, a sender initiates a call message, a message event is [ event ], an protocol library automatically allocates an ID to a call message as [ event _ ID ], and the sender simultaneously associates a callback processing process [ callback ] with [ event _ ID ];
step 82, after receiving the [ event ] message, the receiver replies a reply message, and fills [ event _ id ] data in the reply message;
step 83, after receiving the reply message, the call message sender searches for a [ callback ] process associated with each other according to [ event _ id ], and calls the [ callback ] process to process the reply message;
the sender is a client or a server, and the receiver is a server or a client.
3. A web-based interactive streaming media dual channel transmission system, comprising: a client and a server; wherein the web-based interactive streaming media dual channel transmission system is used for realizing the web-based interactive streaming media dual channel transmission method according to any one of claims 1-2.
4. 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 web-based interactive streaming media dual channel transmission method according to one of claims 1 to 2.
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