CN113347158A - Streaming media data receiving and transmitting method and device and electronic equipment - Google Patents
Streaming media data receiving and transmitting method and device and electronic equipment Download PDFInfo
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- CN113347158A CN113347158A CN202110531418.5A CN202110531418A CN113347158A CN 113347158 A CN113347158 A CN 113347158A CN 202110531418 A CN202110531418 A CN 202110531418A CN 113347158 A CN113347158 A CN 113347158A
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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
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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
- H04L65/1066—Session management
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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
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- 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
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
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Abstract
The application provides a streaming media data receiving and transmitting method, a device and electronic equipment, wherein the method comprises the following steps: receiving streaming media data calling requests sent by a plurality of user terminals, wherein the streaming media data calling requests carry streaming media source identifiers and user terminal identifiers; acquiring original streaming media data returned by a streaming media source corresponding to the streaming media identifier based on the streaming media data calling request, dividing the original streaming media data into a plurality of data blocks, and caching the plurality of data blocks to obtain the streaming media data; determining each target user terminal corresponding to the target streaming media source according to each user terminal identification corresponding to the target streaming media source identification, and establishing a mapping relation between target streaming media data corresponding to the target streaming media source and each target user terminal; and copying the target streaming media data according to the mapping relation and respectively sending the target streaming media data to each target user terminal. The method and the device realize the multi-path distribution of one path of streaming media data and the plug-in-free receiving of the streaming media data.
Description
Technical Field
The present application relates to the field of intelligent transportation, and in particular, to a method, an apparatus, and an electronic device for receiving and transmitting streaming media data.
Background
Streaming media data in the security field are generally sent by using an rtp/tcp/udp protocol, and a client in application based on a web architecture receives and processes data based on an http protocol, and the http protocol is a connectionless protocol, so that the client cannot directly receive a continuous stream. In order to solve the above problems, in the prior art, the receiving and sending of streaming media data are realized by means of a plug-in, however, the plug-in is developed in an intrusive manner, and there are problems of complicated updating, debugging and expansion, and particularly, when a system is used by multiple people, once the plug-in needs to be changed, all users often need to be upgraded and tested, which is cumbersome.
Therefore, the existing streaming media data transceiving method has the technical problem of complicated updating and debugging processes, and needs to be improved.
Content of application
The embodiment of the application provides a streaming media data receiving and sending method, which is used for improving the rapidness and convenience of updating and debugging processes.
In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:
the application provides a streaming media data transceiving method, which is applied to a transceiving server and comprises the following steps:
receiving streaming media data call requests sent by a plurality of user terminals, wherein the streaming media data call requests carry streaming media source identifiers and user terminal identifiers;
acquiring original streaming media data returned by a streaming media source corresponding to the streaming media identifier based on the streaming media data calling request, dividing the original streaming media data into a plurality of data blocks, and caching the data blocks to obtain streaming media data;
determining each target user terminal corresponding to a target streaming media source according to each user terminal identifier corresponding to the target streaming media source identifier, and establishing a mapping relation between target streaming media data corresponding to the target streaming media source and each target user terminal;
and copying the target streaming media data according to the mapping relation and respectively sending the target streaming media data to each target user terminal.
Meanwhile, an embodiment of the present application further provides a streaming media data transceiver device, which is disposed in a transceiver server, and the streaming media data transceiver device includes:
the system comprises a receiving module, a sending module and a receiving module, wherein the receiving module is used for receiving streaming media data calling requests sent by a plurality of user terminals, and the streaming media data calling requests carry streaming media source identifiers and user terminal identifiers;
a cache module, configured to obtain original streaming media data returned by a streaming media source corresponding to the streaming media identifier based on the streaming media data call request, divide the original streaming media data into multiple data blocks, and cache the multiple data blocks to obtain streaming media data;
a determining module, configured to determine, according to each user terminal identifier corresponding to a target streaming media source identifier, each target user terminal corresponding to the target streaming media source, and establish a mapping relationship between target streaming media data corresponding to the target streaming media source and each target user terminal;
and the sending module is used for copying the target streaming media data according to the mapping relation and respectively sending the target streaming media data to each target user terminal.
The application also provides an electronic device comprising a memory and a processor; the memory stores an application program, and the processor is configured to run the application program in the memory to perform any operation in the streaming media data transceiving method.
Has the advantages that: the application provides a streaming media data transceiving method, a device and an electronic device, wherein the method is applied to a transceiving server and comprises the following steps: receiving streaming media data call requests sent by a plurality of user terminals, wherein the streaming media data call requests carry streaming media source identifiers and user terminal identifiers; acquiring original streaming media data returned by a streaming media source corresponding to the streaming media identifier based on the streaming media data calling request, dividing the original streaming media data into a plurality of data blocks, and caching the data blocks to obtain streaming media data; determining each target user terminal corresponding to a target streaming media source according to each user terminal identifier corresponding to the target streaming media source identifier, and establishing a mapping relation between target streaming media data corresponding to the target streaming media source and each target user terminal; and copying the target streaming media data according to the mapping relation and respectively sending the target streaming media data to each target user terminal. According to the method and the device, the cached target streaming media data are copied and then respectively sent to each target user terminal according to the mapping relation between the target streaming media data and each target user terminal, multi-path forwarding of one path of streaming media data is achieved, influence on the original streaming media data is avoided, meanwhile, the original streaming media data are cached after being divided into a plurality of data blocks, the streaming media data received by the user terminals are also a plurality of data blocks instead of a continuous flow, plug-ins do not need to be installed in the user terminals to complete receiving and sending of the streaming media data, and the expansion, debugging and updating of the whole system are convenient and rapid.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic view of a scenario of a streaming media data transceiving system according to an embodiment of the present application.
Fig. 2 is a flowchart illustrating a streaming media data transceiving method according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a first model of a streaming media data transceiving method in an embodiment of the present application.
Fig. 4 is a schematic diagram of a second model of a streaming media data transceiving method in an embodiment of the present application.
Fig. 5 is a schematic structural diagram of a streaming media data transceiver according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a streaming media data receiving and sending method, a streaming media data receiving and sending device and electronic equipment. The streaming media data transceiver may be integrated in an electronic device, and the electronic device may be a server or a terminal.
Referring to fig. 1, fig. 1 is a schematic view of a scenario of a streaming media data transceiving system according to an embodiment of the present application, where the system may include terminals and servers, and the terminals, the servers, and the terminals and the servers are connected and communicated through internet composed of various gateways, and the like, where the application scenario includes a user terminal 11, a transceiving server 12, and a streaming media source 13; wherein:
the user terminal 11 includes, but is not limited to, a tablet Computer, a notebook Computer, a Personal Computer (PC), a micro processing box, or other devices;
the transceiver server 12 includes a local server and/or a remote server, etc., and the transceiver server 12 may be deployed on the local server, or may be partially or completely deployed on the remote server;
the streaming media source 13 includes any device that can provide streaming media data, such as a camera for capturing and storing image data, a microphone for capturing sound data, and the like.
The user terminal 11, the transceiving server 12 and the streaming media source 13 are located in a wireless network or a wired network to realize data interaction among the three, wherein:
the transceiving server 12 receives the streaming media data call requests sent by the plurality of user terminals 11, the streaming media data call requests carry streaming media source identifiers and user terminal identifiers, then, original streaming media data returned by the streaming media source 13 corresponding to the streaming media identifier based on the streaming media data calling request is obtained, the original streaming media data is divided into a plurality of data blocks, the plurality of data blocks are cached to obtain the streaming media data, then the transceiving server 12 determines each target user terminal corresponding to the target streaming media source according to each user terminal identification corresponding to the target streaming media source identification, and finally, copying the target streaming media data according to the mapping relation and respectively sending the target streaming media data to each target user terminal, thereby realizing multi-path distribution of one path of streaming media data and plug-in-free receiving of the streaming media data.
It should be noted that the system scenario diagram shown in fig. 1 is only an example, and the server and the scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person having ordinary skill in the art knows, with the evolution of the system and the occurrence of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
Referring to fig. 2, fig. 2 is a schematic flow chart of a streaming media data transceiving method according to an embodiment of the present application, where the method includes:
s201: receiving streaming media data call requests sent by a plurality of user terminals, wherein the streaming media data call requests carry streaming media source identifiers and user terminal identifiers.
The user terminal sends a streaming media data calling request to the transceiving server, and is used for requesting to acquire streaming media data acquired by a streaming media source in a monitoring place, wherein the streaming media data can be audio or video data, and taking the video data as an example, the streaming media source comprises but is not limited to an embedded high-definition camera, an industrial personal computer, a high-definition camera and the like, and is used for acquiring data of vehicles, pedestrians, traffic gates and the like in a monitoring place, and after receiving the streaming media data, the user terminal judges and processes illegal behaviors through real-time information of the vehicles, the pedestrians, the traffic gates and the like recorded in the streaming media data. When sending a streaming media data call request, the user terminal sends the request through an http protocol, specifically, the request can be sent through a separately developed video monitoring platform, or can be sent directly through a web browser. The streaming media data calling request carries a streaming media source identifier and a user terminal identifier, the streaming media source identifier comprises an ID of the streaming media source, the user terminal identifier comprises an IP address and a port of the user terminal, the target streaming media source identifier is used for indicating which streaming media source is requested to acquire streaming media data, and the user terminal identifier is used for indicating which terminal the streaming media data should be sent to.
In the intelligent traffic system, the number of the user terminals and the number of the streaming media sources are multiple, each user terminal can send a streaming media data calling request to the transceiver server, and the transceiver server sends the streaming media data calling request to the corresponding streaming media source according to the streaming media source identifier carried by each streaming media data calling request. Each user terminal may request streaming media data of the same streaming media source, or may request streaming media data of different streaming media sources.
S202: the method comprises the steps of obtaining original streaming media data returned by a streaming media source corresponding to a streaming media identifier based on a streaming media data calling request, dividing the original streaming media data into a plurality of data blocks, and caching the plurality of data blocks to obtain the streaming media data.
After the receiving and sending server sends the streaming media data call request sent by each user terminal to the corresponding streaming media source, a first stream receiving port is allocated to the streaming media source, the streaming media source returns the acquired original streaming media data to the receiving and sending server, the original streaming media data are received by the first stream receiving port, then the original streaming media data are divided into a plurality of data sub-blocks, namely, a continuous stream sent by using an rtp/tcp/udp protocol is converted into a chunk stream, and then the plurality of data sub-blocks are cached to obtain the corresponding streaming media data.
The original streaming media data is continuous stream and is sent by adopting an rtp/tcp/udp protocol, the http protocol adopted by the user terminal side is a connectionless protocol, so that the continuous stream cannot be directly received and an SDK plug-in is required, the requirement on research and development is high by adopting a plug-in mode, and the receiving and sending principle of the streaming media data needs to be familiar. In addition, the SDK plug-in is not intuitive to use, and the code cannot be disclosed to a user, so that the user faces a condition that an SDK developer needs to carry out technical support when the user applies the SDK plug-in. In the application, the original streaming media data is divided into a plurality of data blocks and then cached, and the streaming media data received by the subsequent user terminal side is received according to the form of the plurality of data blocks, so that no plug-in is required to be additionally arranged, and the expansion, debugging and updating of the whole system are convenient and quick.
S203: and determining each target user terminal corresponding to the target streaming media source according to each user terminal identifier corresponding to the target streaming media source identifier, and establishing a mapping relation between target streaming media data corresponding to the target streaming media source and each target user terminal.
Because the streaming media source identifier and the user terminal identifier are carried in the streaming media data call requests of the plurality of user terminals, when a plurality of different user terminal identifiers all correspond to the same streaming media source identifier, it indicates that the plurality of user terminals all want to acquire the streaming media data of the same streaming media source. And taking a certain streaming media source identifier as a target streaming media source identifier, wherein all the user terminal identifiers carried by the data call request carrying the target streaming media source identifier correspond to the target streaming media source identifier, that is, the user terminals all want to acquire the data of the target streaming media source corresponding to the target streaming media source identifier, so that each user terminal corresponding to the user terminal identifiers is determined as a target user terminal, and a one-to-many mapping relationship is established between the target streaming media data corresponding to the target streaming media source and each target user terminal.
S204: and copying the target streaming media data according to the mapping relation and respectively sending the target streaming media data to each target user terminal.
After the mapping relation is determined, the cached streaming media data are copied for each target user terminal once, the copied streaming media data also comprise a plurality of data blocks, and then the copied streaming media data are sent to the corresponding target user terminals. When there are n user terminals, the buffered streaming media data is also copied n times, and each time the data is sent, the data is sent in a form of data block.
In the prior art, one path of streaming media data can only be sent to one user terminal, that is, streaming media data acquired by a certain streaming media source can only be acquired and watched by one user terminal at the same time, and other user terminals cannot acquire the path of streaming media data during this period, so that a scene that a plurality of user terminals need to acquire the same streaming media data at the same time cannot be satisfied. In addition, for the user terminal of the acquired path of streaming media data, because the user terminal directly acquires and then watches the original streaming media data, if the user terminal performs some operations on the streaming media data, the original streaming media data will be affected, so that the effect is not good when other user terminals subsequently acquire the path of streaming media data.
In the application, because the mapping relation is established between the streaming media data and the corresponding target user terminals, and the streaming media data is copied and then transmitted to each target user terminal subsequently, the multi-path forwarding of the streaming media data is realized, the receiving and transmitting application scenes of the streaming media data are widened, the original streaming media data are not influenced, the watching effect of each user terminal is ensured, and the system stability is improved. In the whole process, the user terminal can obtain the streaming media data at the corresponding port after sending the streaming media data calling request once, and the method is simple and quick.
According to the embodiment, the cached target streaming media data are copied and then respectively sent to each target user terminal according to the mapping relation between the target streaming media data and each target user terminal, so that multi-path forwarding of one path of streaming media data is realized, the original streaming media data are not influenced, meanwhile, the original streaming media data are cached after being divided into a plurality of data blocks, and the streaming media data received by the user terminal are also a plurality of data blocks instead of a continuous flow, so that plug-ins do not need to be installed in the user terminal to complete the transceiving of the streaming media data, and the expansion, debugging and updating of the whole system are convenient and rapid.
As shown in fig. 3, the framework of the method for transceiving streaming media data is divided into several modules, the transceiving server includes a session manager 22, a receive flow manager 23, a bypass manager 24, a port pool manager 25 and a data cache 26, specifically, the session manager 22 includes a session scheduler 221, a session state manager 222, a receive flow address cache 223 and a bypass flow address cache 224, the receive flow manager 23 includes a receive manager 231, a network card load state monitoring module 232 and a flow state monitoring module 233, the bypass manager 24 includes a bypass flow table 242 of a copy manager 241, and the port pool manager 25 includes a distributor 251 and a distribution table 252.
The streaming media data call requests sent by a plurality of user terminals 21 to the transceiving server are received by the session manager 22, after receiving the streaming media data call request, the session manager 22 sends the request to the stream receiving manager 23 and the stream dividing manager 24, the stream receiving manager 23 sends the streaming media data call request to the corresponding streaming media source 27 according to the streaming media source identifier carried by the streaming media data call request, the stream receiving manager 23 requests an idle port from the port pool manager 25, the idle port is opened after the request is successful, the streaming media source 27 sends the original streaming media data to the idle port, the transceiving server caches the original streaming media data in a data cache 26 in a data block form to form streaming media data, the stream dividing manager 24 determines each target user terminal corresponding to the target streaming media source identifier according to each user terminal identifier corresponding to the target streaming media source identifier, and establishing a mapping relation between target streaming media data corresponding to the target streaming media source and each target user terminal, copying the target streaming media data according to the mapping relation, and respectively sending the copied streaming media data to each target user terminal.
In one embodiment, the method for obtaining the streaming media data includes the steps of, by a transceiver server, obtaining original streaming media data returned by a streaming media source corresponding to a streaming media identifier based on a streaming media data call request, dividing the original streaming media data into a plurality of data blocks, and caching the plurality of data blocks to obtain the streaming media data, including: judging whether the streaming media identification exists in a streaming address cache pool or not; if not, sending a streaming media data calling request to a streaming media source corresponding to the streaming media identifier, and receiving the original streaming media data returned by the streaming media source. If yes, the cached streaming media data is directly obtained.
As shown in fig. 4, a plurality of user terminals 21 all send streaming media data call requests to a transceiver server, each streaming media data call request carries a streaming media source identifier and a user terminal identifier, and when a certain streaming media data call request enters a session manager 22, the session manager 22 calls a session scheduler 221 to process the request. The session scheduler 221 firstly queries whether the route streaming media source exists in the receiving streaming address cache 223 according to the target streaming media source identifier carried by the current streaming media data call request, and if not, it indicates that no other user terminal has requested the streaming media data in the route streaming media source before the current user terminal initiates the streaming media data call request, that is, no requested transmission and receiving of the streaming media data are generated between the route streaming media source and the transceiver server, and no connection is established. Therefore, the session scheduler 221 puts the streaming source identifier in the incoming streaming address buffer 223 and the outgoing streaming address buffer 224 at the same time, and adds the request state and the request time, etc. of the request to the session state manager 222. Then, the stream receiving address cache 223 sends the request to the stream receiving manager 23, the stream receiving manager 23 sends a stream media data call request to the stream media source 27 corresponding to the stream media identifier, receives the original stream media data returned by the stream media source 27, and then the original stream media data is divided into a plurality of data blocks and cached in the data cache 26.
If the session scheduler 221 queries that the route streaming media source already exists in the streaming address buffer 223, it indicates that a connection has been established between the streaming manager 23 and the route streaming media source before the current request is received, and the route streaming media data is also buffered in the data buffer 26 in the form of data blocks, so that the corresponding streaming media data can be directly found from the data buffer 26. At this time, the session scheduler 221 only needs to put the streaming media source identifier into the streaming address cache 224, but does not need to put the streaming media source identifier into the streaming address cache 223, so as to avoid resource waste caused by repeatedly requesting streaming media data from the same streaming media source.
After receiving the streaming media data call request, the stream receiving manager 23 sends the streaming media data call request to a streaming media source corresponding to a streaming media identifier in the streaming media data call request, and receives original streaming media data returned by a target streaming media source, where in an embodiment, the step specifically includes: distributing a first stream receiving port for a stream media source corresponding to the stream media identifier according to the stream media data call request; and sending a streaming media data calling request to the streaming media source, and receiving the original streaming media data returned by the streaming media source through the first stream receiving port.
When receiving the streaming media data, the stream receiving manager 23 needs to receive the stream through the port, and therefore before sending the request, a corresponding port needs to be allocated to the path of streaming media data, in an embodiment, the step of allocating the port includes: according to the streaming media data calling request, inquiring a network card load state monitoring table to obtain a first target network card with the load smaller than a threshold value; determining a first target address bound by the first target network card according to the first target network card; and inquiring the running state of each port corresponding to the first target address in the port allocation table, and determining the first flow receiving port according to the running state of each port.
When receiving the streaming media data call request, the stream receiving manager 23 receives the request by the receiving manager 231, then queries the load condition of each network card from the network card load condition monitoring module 232, determines a first target network card with a load smaller than a threshold value, obtains a first target address bound by the first target network card, sends the first target address to the port pool manager 25, and determines a first stream receiving port from a plurality of ports under the first target address by the port pool manager 25. The distributor 251 in the port pool manager 25 periodically scans and updates the list of the allocated, busy-operated and pre-reserved ports in the transceiver server under the first target address at a preset frequency, when the traffic management manager 23 sends the first target address to the port pool manager 25, the distribution manager indicates that the ports need to be distributed, at this time, the distributor 251 inquires the internal distribution table 252 of the distributor 251, searches the allocated ports, the busy-operated ports and the pre-reserved ports, and determines the first traffic port from the rest of the ports after all the ports are excluded. Specifically, a port number is randomly generated, the distributor 251 tries to open the port after the port number is distributed, and if the port cannot be opened, the port number is regenerated, and the opening operation is tried again until the port is determined to be available, the port is returned to the requester as the first flow receiving port for use, and is placed in the distribution table 252, so that the port is prevented from being occupied in the next distribution.
In one embodiment, the step of sending a streaming media data call request to a streaming media source corresponding to the streaming media identifier and receiving original streaming media data returned by the streaming media source includes: sending a streaming media data calling request to a streaming media source corresponding to the streaming media identifier; receiving original streaming media data returned by a streaming media source, and monitoring the return state of the original streaming media data; and when the return state is overtime or abnormal data, disconnecting the connection with the streaming media source, and sending the streaming media data calling request to the streaming media source again after a preset time period.
After the receiving manager 231 processes the first destination address and the first stream receiving port of the received stream, the first stream receiving port is opened, and meanwhile, a stream media data call request is sent to the stream media source 27, and the stream media source 27 waits for sending the original stream media data. If the original streaming media data arrives, the path of original streaming media data is put into the streaming status monitoring module 233 for monitoring the return status, and meanwhile, the original streaming media data is put into the shared data cache 26 in a data block form, if the original streaming media data does not arrive when time out, or the streaming status monitoring module 233 monitors that the original streaming media data arrives but the time out is serious, the packet loss is serious, and other abnormal conditions occur, the receiving manager 231 will try to disconnect the streaming reception, and request for a certain number of times again after a preset time period. If the situation that the stream cannot be normally received still exists after the preset number of retries, the situation is returned to the session scheduler 221, and the processing of the original streaming media data of the path is terminated.
The original streaming media data received by the receiving manager 231 is a continuous stream and is sent through an rtp/tcp/udp protocol, the receiving manager 231 divides the original streaming media data into a plurality of data blocks and then caches the data blocks into the data cache 26, and the streaming media data received by the subsequent user terminal side is also received in the form of a plurality of data blocks, that is, the continuous stream is not directly received, so that no plug-in is required to be additionally arranged, and the expansion, debugging and updating of the whole system are convenient and quick.
After receiving each streaming media data call request, the session scheduler 221 puts the streaming media source identifier and the user terminal identifier carried in each streaming media data call request into the offload address cache 224, and then sends them to the offload manager 24, and the offload manager 24 matches each streaming media source identifier and each user terminal identifier, and summarizes them into the one-to-many offload table 242. Specifically, a target streaming media identifier is determined, then all target user terminal identifiers corresponding to the target streaming media identifier are read from the splitting address cache 224, and a mapping relationship between the target streaming media identifier and each user terminal identifier is established to form a splitting table 242, that is, a one-to-many mapping relationship is established between streaming media data corresponding to the target streaming media identifier and each target user terminal. For each media source identifier in the breakout address cache 224, a mapping relationship with the corresponding target user terminal identifier may be established. After the shunting table 242 is established, the copy manager 241 regularly reads the table at a preset frequency, after reading, searches the target streaming media data under the target streaming media identifier in the data cache 26 according to the mapping relationship in the table, then copies a copy of the target streaming media data for each target user terminal according to each target user terminal identifier, and pushes streaming according to the IP address and the port in the target user terminal identifier. Because the copied target streaming media data are also a plurality of data blocks and are sent in a data block mode during stream pushing, the method can adapt to the form that the http protocol on the user terminal side is not connected, and plug-ins do not need to be additionally arranged on the user terminal, so that the expansion, debugging and updating of the whole system are convenient and quick.
In an embodiment, before the step of copying the target streaming media data according to the mapping relationship, the method further includes: inquiring a network card load state monitoring table according to the streaming media data calling request to obtain a second target network card with the load smaller than a threshold value; determining a second target address bound by the second target network card according to the second target network card; and inquiring the running state of each port corresponding to the second target address in the port distribution table, and determining a stream pushing port for sending the target stream media data to each target user terminal according to the running state of each port.
The shunt manager 24 also needs to ask the port pool manager 25 for a port when it determines that a push flow is needed. The port pool manager 25 queries the load condition of each network card from the network card load condition monitoring module 232 of the traffic manager 23, determines a second target network card with a load smaller than a threshold value, acquires a second target address bound by the second target network card, and then the port pool manager 25 determines a traffic pushing port from a plurality of ports under the second target address. The distributor 251 in the port pool manager 25 periodically scans and updates the list of the allocated, busy-operated and pre-reserved ports in the transceiver server under the second target address at a preset frequency, when the stream receiving manager 23 acquires the second target address, it indicates that the ports need to be allocated, at this time, the distributor 251 inquires the internal allocation table 252 of the distributor 251, and then the allocated ports, the busy-operated ports and the pre-reserved ports are searched out, and after all the ports are excluded, the push flow ports are determined from the rest of the ports. Specifically, a port number is randomly generated, the distributor 251 tries to open the port after the port number is allocated, and if the port cannot be opened, the port number is generated again, and the opening operation is tried again until the port is determined to be available, the port is returned to the requester as a stream pushing port, and is placed in the allocation table 252, so that the port is prevented from being occupied in the next allocation. Because the first receive port and the push port are allocated, the load condition of the current network card needs to be inquired from the network card load condition monitoring module 232, and after the first receive port is allocated, the first target network card has a load, when the push port is allocated, the first target network card is not allocated as the second target network card, that is, the first target network card for receiving the stream and the second target network card for pushing the stream are different, this arrangement can improve the performance of the system, and prevent the situations of jamming, data error and the like.
In an embodiment, the step of determining, according to the user terminal identifiers corresponding to the target streaming media source identifiers, each target user terminal corresponding to the streaming media source, and establishing a mapping relationship between target streaming media data corresponding to the target streaming media source and each target user terminal specifically includes: determining each user terminal corresponding to the target streaming media source according to each user terminal identification corresponding to the target streaming media source identification; monitoring the working state of each user terminal corresponding to the target streaming media source, and determining each target user terminal corresponding to the target streaming media source according to the working state; and establishing a mapping relation between target streaming media data corresponding to the target streaming media source and each target user terminal.
After the allocation table 252 of the target streaming media source identifier and each corresponding user terminal identifier is established, if target streaming media data is directly sent to the user terminal corresponding to each user terminal identifier, if a certain user terminal is in a dropped or wrong state, resource waste is caused, so after the mapping relationship of 1 to n in the allocation table 252 is determined, the working state of each user terminal corresponding to the target streaming media source is monitored first, each target user terminal corresponding to the target streaming media source is determined according to the working state, and if a certain user terminal is dropped or has an error, n is reduced by 1 in the allocation table 252 until the value is 0. For a streaming source identification with a number of non-pushed user terminals of 0, the streaming manager 24 will inform the session state manager 222 to reclaim resources.
In an embodiment, after the step of copying the target streaming media data and respectively sending the copied target streaming media data to each target user terminal according to the mapping relationship, the method further includes: monitoring the sending state of the target streaming media data and the switching state of a second stream receiving port of the target user terminal; and when the sending state is overtime or failure or the switch state of the second stream receiving port is closed, recovering the stream pushing port for sending the target stream media data.
When sending the target streaming media data to the target client terminal, the session state manager 222 always monitors the sending state of the target streaming media data and the switching state of the second streaming port of each target user terminal, after the target client terminal successfully receives the streaming media data, the corresponding second port is closed, if the session state manager 222 monitors that the push of the streaming manager 24 fails, or the second ports of all the user terminals are closed, the session state manager actively notifies the port pool manager 25 to recover the streaming port, after the port pool manager 25 recovers the streaming port, the port pool manager sends a notification that the streaming port has been recovered to both the streaming manager 23 and the streaming manager 24, and after receiving the notification, both will end the processing of the target streaming media data.
By setting five modules, namely a session manager 22, a stream receiving manager 23, a stream dividing manager 24, a port pool manager 25 and a data cache 26, the session manager 22 is configured to receive a streaming media data call request, create a user session according to a streaming media source identifier and a user terminal identifier carried in the request, place a created session object into its own cache pool, monitor a session state, and determine whether to notify the port pool manager 25 of port recovery according to the monitored state; the stream receiving manager 23 is responsible for judging network card load, determining a stream receiving address, starting a stream receiving port, sending a request to an external stream media source, maintaining a stream state, organizing the stream media data according to stream media identification and storing the stream media data into a shared data cache to wait for the reading of the stream distributing manager 24; the sub-stream manager 24 is configured to determine where a certain path of streaming media data is forwarded according to the requested media source identifier and the user terminal identifier, and then copy the streaming media data from the shared data cache instead of directly fetching the stream, so as to ensure that the original streaming media data is not affected, and thus, multiple paths of original streaming media data can be copied as needed for each path of original streaming media data, and if the sub-stream manager 24 does not copy a certain path of streaming media data, the session manager 22 is notified to recover resources; the port pool manager 25 is used for port management bound with the network card, including logic of allocation, recovery, reuse and the like of available ports, and provides services for flow receiving and flow dividing management; the data buffer 26 is used for buffering the original streaming media data in the form of data blocks. The modules work together to realize multi-path distribution of one path of streaming media data and plug-in-free receiving of the streaming media data.
On the basis of the method described in the foregoing embodiment, the present embodiment will be further described from the perspective of a streaming media data transceiver, please refer to fig. 5, where fig. 5 specifically describes the streaming media data transceiver provided in the embodiment of the present application, which may include:
a receiving module 110, configured to receive streaming media data call requests sent by multiple user terminals, where the streaming media data call requests carry streaming media source identifiers and user terminal identifiers;
the cache module 120 is configured to obtain original streaming media data returned by the streaming media source corresponding to the streaming media identifier based on the streaming media data call request, divide the original streaming media data into a plurality of data blocks, and cache the plurality of data blocks to obtain the streaming media data;
a determining module 130, configured to determine, according to the user terminal identifiers corresponding to the target streaming media source identifiers, target user terminals corresponding to the target streaming media source, and establish a mapping relationship between target streaming media data corresponding to the target streaming media source and the target user terminals;
and a sending module 140, configured to copy the target streaming media data according to the mapping relationship and send the target streaming media data to each target user terminal.
In one embodiment, the cache module 120 includes:
the judging submodule is used for judging whether the streaming media identification exists in the streaming receiving address cache pool or not;
and the receiving submodule is used for sending a streaming media data calling request to the streaming media source corresponding to the streaming media identifier if the streaming media identifier does not exist, and receiving the original streaming media data returned by the streaming media source.
And the obtaining submodule is used for directly obtaining the cached streaming media data if the cached streaming media data exists.
In one embodiment, the receiving sub-module includes:
the distribution unit is used for distributing a first stream receiving port for the stream media source corresponding to the stream media identifier according to the stream media data call request;
and the receiving unit is used for sending a streaming media data calling request to the streaming media source and receiving the original streaming media data returned by the streaming media source through the first stream receiving port.
In an embodiment, the first allocation unit is configured to query a network card load status monitoring table according to the streaming media data call request, and obtain a first target network card with a load smaller than a threshold; determining a first target address bound by the first target network card according to the first target network card; and inquiring the running state of each port corresponding to the first target address in the port allocation table, and determining the first flow receiving port according to the running state of each port.
In an embodiment, the streaming media data transceiver further includes a push flow port determining module, where the push flow port determining module operates before the sending module 140, and the push flow port determining module is configured to query the network card load status monitoring table according to the streaming media data call request, so as to obtain a second target network card with a load smaller than a threshold; determining a second target address bound by the second target network card according to the second target network card; and inquiring the running state of each port corresponding to the second target address in the port distribution table, and determining a stream pushing port for sending the target stream media data to each target user terminal according to the running state of each port.
In one embodiment, the receiving sub-module further comprises:
a sending unit, configured to send a streaming media data call request to a streaming media source corresponding to the streaming media identifier;
the monitoring unit is used for receiving the original streaming media data returned by the streaming media source and monitoring the return state of the original streaming media data;
and the port unit is used for disconnecting the connection with the streaming media source when the return state is overtime or abnormal data, and sending the streaming media data calling request to the streaming media source again after a preset time period.
In one embodiment, the determining module 130 includes:
the monitoring submodule is used for monitoring the working state of each user terminal corresponding to the target streaming media source and determining each target user terminal corresponding to the target streaming media source according to the working state;
the first determining submodule is used for determining each target user terminal corresponding to the target streaming media source identifier according to the working state of each user terminal;
and the second determining submodule is used for establishing a mapping relation between target streaming media data corresponding to the target streaming media source and each target user terminal.
In an embodiment, the streaming media data transceiver further includes a push port recycling module, where the push port recycling module is configured to work after the sending module 140, and the push port recycling module is configured to monitor a sending state of the target streaming media data and an on-off state of a second receiving port of the target user terminal; and when the sending state is overtime or failure or the switch state of the second stream receiving port is closed, recovering the stream pushing port for sending the target stream media data.
Different from the prior art, the streaming media data transceiver provided by the application copies the cached target streaming media data and then respectively sends the copied target streaming media data to each target user terminal according to the mapping relationship between the target streaming media data and each target user terminal, so that multi-path forwarding of one path of streaming media data is realized, the original streaming media data is not influenced, meanwhile, the original streaming media data is cached after being divided into a plurality of data blocks, and the streaming media data received by the user terminal is also a plurality of data blocks instead of a continuous flow, so that the streaming media data is not required to be received and sent by installing a plug-in the user terminal, and the expansion, debugging and updating of the whole system are convenient and fast.
Accordingly, an electronic device according to an embodiment of the present disclosure may include, as shown in fig. 6, a Radio Frequency (RF) circuit 601, a memory 602 including one or more computer-readable storage media, an input unit 603, a display unit 604, a sensor 605, an audio circuit 606, a Wireless Fidelity (WiFi) module 607, a processor 608 including one or more processing cores, and a power supply 609. Those skilled in the art will appreciate that the server architecture shown in FIG. 6 is not meant to be limiting, and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. Wherein:
the RF circuit 601 may be used for receiving and transmitting signals during a message transmission or communication process, and in particular, for receiving downlink messages from a base station and then processing the received downlink messages by one or more processors 608; in addition, data relating to uplink is transmitted to the base station. The memory 602 may be used to store software programs and modules, and the processor 608 executes various functional applications and data processing by operating the software programs and modules stored in the memory 602. The input unit 603 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.
The display unit 604 may be used to display information input by or provided to the user and various graphical user interfaces of the server, which may be made up of graphics, text, icons, video, and any combination thereof.
The server may also include at least one sensor 605, such as light sensors, motion sensors, and other sensors. Audio circuitry 606 includes speakers that may provide an audio interface between the user and the server.
WiFi belongs to short distance wireless transmission technology, and the server can help the user send and receive e-mail, browse web page and access streaming media etc. through WiFi module 607, it provides wireless broadband internet access for the user. Although fig. 6 shows the WiFi module 607, it is understood that it does not belong to the essential constitution of the server, and may be omitted entirely as needed within the scope of not changing the essence of the application.
The processor 608 is the control center of the server, connects various parts of the entire handset using various interfaces and lines, and performs various functions of the server and processes data by running or executing software programs and/or modules stored in the memory 602 and calling data stored in the memory 602, thereby performing overall monitoring of the handset.
The server also includes a power supply 609 (e.g., a battery) for powering the various components, which may preferably be logically connected to the processor 608 via a power management system, such that the power management system may manage charging, discharging, and power consumption.
Although not shown, the server may further include a camera, a bluetooth module, etc., which will not be described herein. Specifically, in this embodiment, the processor 608 in the server loads the executable file corresponding to the process of one or more application programs into the memory 602 according to the following instructions, and the processor 608 runs the application program stored in the memory 602, so as to implement the following functions:
receiving streaming media data calling requests sent by a plurality of user terminals, wherein the streaming media data calling requests carry streaming media source identifiers and user terminal identifiers; acquiring original streaming media data returned by a streaming media source corresponding to the streaming media identifier based on the streaming media data calling request, dividing the original streaming media data into a plurality of data blocks, and caching the plurality of data blocks to obtain the streaming media data; determining each target user terminal corresponding to the target streaming media source according to each user terminal identification corresponding to the target streaming media source identification, and establishing a mapping relation between target streaming media data corresponding to the target streaming media source and each target user terminal; and copying the target streaming media data according to the mapping relation and respectively sending the target streaming media data to each target user terminal.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed description, and are not described herein again.
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor.
To this end, the present application provides a storage medium, in which a plurality of instructions are stored, and the instructions can be loaded by a processor to implement the following functions:
receiving streaming media data calling requests sent by a plurality of user terminals, wherein the streaming media data calling requests carry streaming media source identifiers and user terminal identifiers; acquiring original streaming media data returned by a streaming media source corresponding to the streaming media identifier based on the streaming media data calling request, dividing the original streaming media data into a plurality of data blocks, and caching the plurality of data blocks to obtain the streaming media data; determining each target user terminal corresponding to the target streaming media source according to each user terminal identification corresponding to the target streaming media source identification, and establishing a mapping relation between target streaming media data corresponding to the target streaming media source and each target user terminal; and copying the target streaming media data according to the mapping relation and respectively sending the target streaming media data to each target user terminal.
The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.
Wherein the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
Since the instructions stored in the storage medium can execute the steps in any method provided in the embodiments of the present application, the beneficial effects that can be achieved by any method provided in the embodiments of the present application can be achieved, for details, see the foregoing embodiments, and are not described herein again.
The method, the apparatus, and the electronic device for receiving and transmitting streaming media data provided by the embodiments of the present application are described in detail above, and a specific example is applied in the description to explain the principle and the implementation of the present application, and the description of the embodiments is only used to help understand the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A method for transceiving streaming media data is applied to a transceiving server, and comprises the following steps:
receiving streaming media data call requests sent by a plurality of user terminals, wherein the streaming media data call requests carry streaming media source identifiers and user terminal identifiers;
acquiring original streaming media data returned by a streaming media source corresponding to the streaming media identifier based on the streaming media data calling request, dividing the original streaming media data into a plurality of data blocks, and caching the data blocks to obtain streaming media data;
determining each target user terminal corresponding to a target streaming media source according to each user terminal identifier corresponding to the target streaming media source identifier, and establishing a mapping relation between target streaming media data corresponding to the target streaming media source and each target user terminal;
and copying the target streaming media data according to the mapping relation and respectively sending the target streaming media data to each target user terminal.
2. The method for transceiving streaming media data according to claim 1, wherein the step of obtaining original streaming media data returned by a streaming media source corresponding to the streaming media identifier based on the streaming media data call request, dividing the original streaming media data into a plurality of data chunks, and caching the plurality of data chunks to obtain streaming media data comprises:
judging whether the streaming media identification exists in a streaming address cache pool or not;
if not, sending the streaming media data calling request to a streaming media source corresponding to the streaming media identifier, and receiving original streaming media data returned by the streaming media source;
if yes, the cached streaming media data is directly obtained.
3. The method for transceiving streaming media data according to claim 2, wherein the step of sending the streaming media data call request to a streaming media source corresponding to the streaming media identifier and receiving original streaming media data returned by the streaming media source comprises:
distributing a first stream receiving port for a stream media source corresponding to the stream media identifier according to the stream media data call request;
and sending the streaming media data calling request to the streaming media source, and receiving the original streaming media data returned by the streaming media source through the first stream receiving port.
4. The streaming media data transceiving method according to claim 3, wherein the step of allocating a first stream receiving port to a streaming media source corresponding to the streaming media identifier according to the streaming media data call request includes:
inquiring a network card load state monitoring table according to the streaming media data calling request to obtain a first target network card with the load smaller than a threshold value;
determining a first target address bound by the first target network card according to the first target network card;
and inquiring the running state of each port corresponding to the first target address in the port allocation table, and determining the first flow receiving port according to the running state of each port.
5. The streaming media data transceiving method according to claim 3, wherein before the step of copying the target streaming media data according to the mapping relationship, further comprising:
inquiring a network card load state monitoring table according to the streaming media data calling request to obtain a second target network card with the load smaller than a threshold value;
determining a second target address bound by the second target network card according to the second target network card;
and inquiring the running state of each port corresponding to the second target address in the port allocation table, and determining a stream pushing port for sending the target stream media data to each target user terminal according to the running state of each port.
6. The method for transceiving streaming media data according to claim 2, wherein the step of sending the streaming media data call request to a streaming media source corresponding to the streaming media identifier and receiving original streaming media data returned by the streaming media source comprises:
sending the streaming media data calling request to a streaming media source corresponding to the streaming media identifier;
receiving original streaming media data returned by the streaming media source, and monitoring the return state of the original streaming media data;
and when the return state is overtime or abnormal data, disconnecting the connection with the streaming media source, and sending the streaming media data calling request to the streaming media source again after a preset time period.
7. The method for transceiving streaming media data according to claim 1, wherein the step of determining, according to the identifiers of the user terminals corresponding to the identifiers of the target streaming media sources, the target user terminals corresponding to the target streaming media sources, and establishing a mapping relationship between the target streaming media data corresponding to the target streaming media sources and the target user terminals comprises:
determining each user terminal corresponding to the target streaming media source according to each user terminal identification corresponding to the target streaming media source identification;
monitoring the working state of each user terminal corresponding to the target streaming media source, and determining each target user terminal corresponding to the target streaming media source according to the working state;
and establishing a mapping relation between the target streaming media data corresponding to the target streaming media source and each target user terminal.
8. The method for transceiving streaming media data according to claim 1, wherein after the step of copying the target streaming media data according to the mapping relationship and respectively transmitting the copied target streaming media data to each target user terminal, the method further comprises:
monitoring the sending state of the target streaming media data and the switching state of a second stream receiving port of the target user terminal;
and when the sending state is overtime or failure or the switching state of the second stream receiving port is closed, recovering the stream pushing port for sending the target stream media data.
9. A streaming media data transceiving apparatus provided in a transceiving server, the streaming media data transceiving apparatus comprising:
the system comprises a receiving module, a sending module and a receiving module, wherein the receiving module is used for receiving streaming media data calling requests sent by a plurality of user terminals, and the streaming media data calling requests carry streaming media source identifiers and user terminal identifiers;
a cache module, configured to obtain original streaming media data returned by a streaming media source corresponding to the streaming media identifier based on the streaming media data call request, divide the original streaming media data into multiple data blocks, and cache the multiple data blocks to obtain streaming media data;
a determining module, configured to determine, according to each user terminal identifier corresponding to a target streaming media source identifier, each target user terminal corresponding to the target streaming media source, and establish a mapping relationship between target streaming media data corresponding to the target streaming media source and each target user terminal;
and the sending module is used for copying the target streaming media data according to the mapping relation and respectively sending the target streaming media data to each target user terminal.
10. An electronic device comprising a memory and a processor; the memory stores an application program, and the processor is configured to execute the application program in the memory to perform the operations of the streaming media data transceiving method according to any one of claims 1 to 8.
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Application publication date: 20210903 |