WO2018121742A1 - Method and device for transmitting stream data - Google Patents

Abstract

A method and device for transmitting stream data. The method comprises: receiving protocol configuration information delivered from a management end to the current transmission node; receiving a transmission protocol scheduling request by means of a protocol interface, the protocol interface encapsulating a plurality of transmission protocols; determining the transmission protocol having the highest priority, in at least one transmission protocol satisfying a corresponding scheduling condition, as an improved protocol based on a user datagram protocol; establishing a communication link by means of a plurality of handshakes; and transmitting stream data on the basis of the selected improved protocol and receiving fed-back response messages, each response message recording a plurality of sending results of a plurality of sent stream data packets. The technical solution implements the transmission of stream data by selecting suitable transmission protocols for different network states, and solves the generally common problem of high latency of transmission protocols for stream data.

Description

Method and device for transmitting stream data Technical field

The present invention relates to the field of stream data transmission technologies, and in particular, to a method for transmitting stream data and a device for transmitting stream data.

Background technique

Stream data is data that can be transmitted on the network by means of streaming. For streaming data services, there are many common stream data transmission protocols, such as RTMP (Real Time Messaging Protocol) and HLS ( HTTP Live Streaming (HTTP-based streaming media network transmission protocol), RTP (Real-time Transport Protocol, a transport layer protocol for multimedia data streams on the Internet).

However, whether RTMP, HLS or RTP protocols have high latency, and UDP (User Datagram Protocol) is used, the delay is relatively low, but many operators will intercept the streaming data transmission of UDP protocol. It is also impossible to select the applicable transport protocol for the transmission of streaming data for different network conditions.

Summary of the invention

In view of the above problems, the present invention has been made in order to provide a method and a corresponding apparatus for transmitting stream data that overcomes the above problems or at least partially solves or alleviates the above problems.

According to an aspect of the present invention, a method for transmitting stream data is provided, including the steps of:

Receiving protocol configuration information that is sent by the management terminal to the current transit node; the protocol configuration information includes a calling condition and a priority configured for each transport protocol, and the protocol configuration information is transmitted according to history of multiple clients under each transport protocol. a state generation, where the calling condition includes at least one of a network operator used by the current device and a geographical location;

Receiving a call request to a transport protocol through a protocol interface, the protocol interface encapsulating a plurality of transport protocols;

Determining, in the at least one transmission protocol that meets the corresponding calling condition, the transmission protocol with the highest priority is an improved protocol based on the user datagram protocol;

Establishing a communication link by multiple handshakes;

The stream data is transmitted based on the selected improved protocol, and the feedback response message is received, and each response message records the transmission result of the plurality of sent stream packets.

According to another aspect of the present invention, a streaming data transmission apparatus is provided, including:

a configuration information receiving module, configured to receive protocol configuration information that is sent by the management terminal to the current transit node; the protocol configuration information includes a calling condition and a priority configured for each transport protocol, where the protocol configuration information is based on multiple clients. The historical transmission status of each transmission protocol is generated, and the calling condition includes at least one of a network operator used by the current device and a geographical location;

Calling a request receiving module, configured to receive a call request for a transport protocol by using a protocol interface, where the protocol interface encapsulates multiple transport protocols;

An improved protocol determining module, configured to determine, in the at least one transmission protocol that meets the corresponding calling condition, the highest priority transmission protocol is an improved protocol based on a user datagram protocol;

a communication link establishing module, configured to establish a communication link by multiple handshakes;

The stream data transmission module is configured to perform stream data transmission according to the selected improved protocol, and receive the feedback response message, and each response message records the transmission result of the plurality of sent stream data packets.

According to still another aspect of the present invention, a computer program is provided, comprising computer readable code that, when executed on a computing device, causes the computing device to perform streaming data as described above Transmission method.

According to still another aspect of the present invention, a computer readable medium is provided, wherein the computer program described above is stored.

The beneficial effects of the invention are:

According to the present invention, a method and an apparatus for transmitting stream data, by receiving protocol configuration information sent by a management terminal to a current transport node, receiving a call request for a transport protocol through a protocol interface, and determining at least one transport protocol that satisfies a corresponding call condition The highest priority transmission protocol is an improved protocol based on the user datagram protocol. The communication link is established through multiple handshakes, the stream data is transmitted based on the selected improved protocol, and the feedback response message is received, so that the history can be The transmission data is selected for different network operators and regions, and a suitable transmission protocol is proposed. An improved protocol with lower delay and reliability than the UDP protocol is proposed, and the applicable transmission protocol is selected for different network conditions for streaming data. Transmission, and a preferred improved protocol is also proposed, which solves the problem of high delay of the general public stream data transmission protocol.

The above description is only an overview of the technical solutions of the present invention, and the above-described and other objects, features and advantages of the present invention can be more clearly understood. Specific embodiments of the invention are set forth below.

DRAWINGS

Various other advantages and benefits will become apparent to those skilled in the art from a The drawings are only for the purpose of illustrating the preferred embodiments and are not to be construed as limiting. Throughout the drawings, the same reference numerals are used to refer to the same parts. In the drawing:

FIG. 1 is a schematic flow chart showing the steps of a method for transmitting stream data according to Embodiment 1 of the present invention; FIG.

FIG. 2 is a schematic flow chart showing the steps of a method for transmitting stream data according to Embodiment 2 of the present invention; FIG.

FIG. 3 is a schematic flow chart showing the steps of a method for transmitting stream data according to Embodiment 3 of the present invention; FIG.

FIG. 4 is a block diagram showing the structure of a stream data transmission apparatus according to Embodiment 4 of the present invention; FIG.

Figure 5 is a schematic block diagram showing a computing device for performing the method according to the present invention;

Fig. 6 schematically shows a storage unit for holding or carrying program code implementing the method according to the invention.

Specific embodiment

The invention is further described below in conjunction with the drawings and specific embodiments.

Referring to FIG. 1 , a flow chart of a method for transmitting a stream data according to a first embodiment of the present invention is shown.

Step 101: Receive protocol configuration information that is sent by the management terminal to the current transit node.

Stream data is data that can be transmitted over the network by means of streaming, and stream data can be transmitted from one node to at least one transport node. A transport node is a server that can be used to receive, store, and distribute streaming data. The protocol configuration information is information for configuring each protocol of the streaming data transmission, and specifically includes a calling condition and a priority configured for each transport protocol, where the calling condition includes at least one of a network operator used by the current device and a geographical location, and a priority. The priority of each transport protocol is called when the call conditions are the same. The protocol configuration information can be generated according to the historical transmission status of multiple clients under each transport protocol. For example, according to the transmission speeds, network fluctuations, and the like reported by the multiple clients, the network operator and the domain in which the current device is used are generated, and the configuration information of the transmission protocol is invoked.

In the embodiment of the present invention, the transport protocol refers to a protocol of the transport layer, and can be mainly used for transmitting stream data between devices of various servers, personal computers, mobile terminals and the like. Specifically, it may include TCP (English full name: Transmission Control Protocol, Chinese name: Transmission Control Protocol), UDP (English full name: User Datagram Protocol, Chinese name: User Datagram Protocol). The management terminal is a server that generates protocol configuration information. The management terminal can receive the historical transmission status reported by multiple clients, and generate protocol configuration information according to the protocol configuration information, and send the protocol configuration information to each transmission node. Protocol configuration information.

Step 102: Receive a call request for a transport protocol through a protocol interface.

In the embodiment of the present invention, the protocol interface is an interface encapsulated with multiple transport protocols, and the call request refers to a request for selecting a transport protocol for the transport stream data, and specifically, the call request for the transport protocol may be received through the protocol interface. The transport protocols encapsulated by the protocol interface may include transport control protocols, user datagram protocols, and other transport protocols.

Step 103: Determine, in the at least one transmission protocol that meets the corresponding calling condition, that the transmission protocol with the highest priority is an improved protocol based on the user datagram protocol.

In the embodiment of the present invention, the at least one transmission protocol that satisfies the calling condition refers to at least one applicable transmission protocol determined according to the network operator of the current device corresponding to the calling request and the geographical location. The transmission protocol with the highest priority is selected among the at least one transmission protocol satisfying the calling condition, and the transmission protocol with the highest priority is an improved protocol based on the user datagram protocol. The improved protocol is a protocol for improving the user datagram protocol, specifically, after the stream data transmission is performed, the protocol connection packet is transmitted on the basis of the user datagram protocol, and the other end of the transmission establishes a communication link by multiple handshakes. Transmitting data based on the user datagram protocol, receiving feedback response information, and each response message records the transmission result of the plurality of sent stream data packets.

In step 104, a communication link is established by multiple handshakes.

In the embodiment of the present invention, the current device can establish a communication link with the other end of the transmission by multiple handshakes, and the communication link is a physical channel between two nodes in the network. For example, it is currently possible for a client to establish a communication link with a server through a four-way handshake. The number of times of the handshake may be any applicable number of times. This embodiment does not limit this.

Step 105: Perform streaming data transmission based on the selected improved protocol, and receive a feedback response message.

In the embodiment of the present invention, each response message is a message for recording a transmission result of a plurality of sent stream data packets, and may determine, according to the response message, which stream data packets are successfully transmitted, which stream data packets are not successfully transmitted, and a sending time, etc. .

After the connection is established, the stream data may be transmitted based on the improved protocol. Specifically, the stream data may be transmitted in the same manner as the user datagram protocol. After receiving the data packet of the stream data, the receiver sends a response message and a response message. It includes whether each packet is received and sent, and then receives a feedback response message. Specifically, in the case of the data transmission, a response message may be fed back to any number of data packets, which is not limited in this embodiment.

In summary, according to the embodiment of the present invention, by receiving the protocol configuration information that is sent by the management terminal to the current transit node, receiving a call request for the transport protocol through the protocol interface, and determining that at least one transport protocol that meets the corresponding calling condition is prioritized The highest-level transmission protocol is an improved protocol based on the user datagram protocol. The communication link is established through multiple handshakes, the stream data is transmitted based on the selected improved protocol, and the feedback response message is received, so that the data can be transmitted according to the history. Different network operators, regions, etc. select the applicable transmission protocol, and also propose an improved protocol with low delay and reliability than the UDP protocol, which realizes the transmission of stream data for selecting different applicable network protocols for different network conditions, and A preferred improved protocol has also been proposed, which solves the problem of high delay of the general public stream data transmission protocol.

In an embodiment of the present invention, preferably, the method further includes the step of: calculating a change value of the receiving frequency of the plurality of response messages received in sequence, and determining that the transmission jam occurs if the change value of the received frequency exceeds the set threshold.

The receiving frequency is the frequency at which the current device sequentially receives the response message, and the receiving frequency can be obtained according to the receiving time of the multiple response messages, and then the change value of the receiving frequency of the plurality of response messages received in sequence is calculated, and the change value refers to the description receiving. The value of the frequency change size. When the receiving frequency changes, it means that the network has fluctuated. According to the improved protocol, if the change value exceeds the set threshold, it can be determined that the transmission jam has occurred. The threshold value can be any applicable value, which is not limited in this embodiment.

A response message corresponds to a plurality of stream packets, and the time of sending the first stream packet of the plurality of stream packets is used as the start time, and the time when the response message is received is used as the difference between the end time, the end time, and the start time. It is the round-trip delay, and the change value of the reception frequency of the plurality of response messages received in sequence is calculated, that is, the change value of the round-trip delay is calculated.

For example, a calculation method for calculating the change value of the receiving frequency may be first dividing the size of the buffer space by the minimum round-trip delay, subtracting the size of the buffer space by the round-trip delay, and then multiplying by the minimum round-trip delay to obtain the reception. The change value of the frequency; the threshold can be set by first calculating the round trip delay divided by the size of the buffer space, then taking the average value and multiplying by the set coefficient, for example, 0.35, to determine the set threshold. The calculated change value of the received frequency and the obtained set threshold are compared, and if the change value exceeds the set threshold, it can be determined that the transmission jam has occurred.

In the embodiment of the present invention, preferably, the reduction ratio of the cache space set for the improved protocol is used, where the cache space is used to store the flow data packet to be sent, and the reduction ratio of the improved protocol is smaller than the reduction ratio of other transmission protocols. According to the reduced ratio of the search, the normal value of the storage capacity of the cache space under non-transport congestion is reduced.

The cache space is used to store the stream packets to be sent. The size of the cache space is a dynamic value, and the rate of data transfer is adjusted according to the size of the cache space. The size of the cache space is adjusted to control the speed of the transfer. The proportion of reduction or increase when adjusting the buffer space is determined according to the settings of the transmission protocol. The reduction ratio of the improved protocol is smaller than the reduction ratio of other transmission protocols, for example, the reduction ratio of the improved protocol setting is smaller than the reduction ratio set by the TCP protocol. The reduction ratio can be any applicable value, which is not limited in this embodiment.

When the transmission is blocked, find the reduction ratio of the cache space that is improved by the protocol setting, and reduce the normal value of the storage capacity of the cache space under non-transport congestion according to the reduction ratio set by the improved protocol. Since the reduction ratio of the improved protocol settings is smaller than that of other transmission protocols, it will occupy more bandwidth when the network is blocked, and achieve faster transmission speed.

In the embodiment of the present invention, preferably, if the problem of detecting the transmission congestion is removed, the recovery ratio of the cache space set for the improved protocol is searched, and the recovery ratio of the improved protocol is greater than the recovery ratio of other transmission protocols, according to the search. The recovery ratio, at least once, resets the current storage capacity of the cache space until the storage capacity returns to a normal value under non-transport congestion.

If the problem of detecting the transmission jam has been removed, look for the recovery ratio of the cache space set by the improved protocol. The recovery ratio of the improved protocol is greater than the recovery ratio of other transport protocols. According to the recovery ratio of the improved protocol, the current cache space is reset at least once. Storage capacity until the storage capacity returns to the normal value under non-transport congestion. For example, the recovery ratio may be set to one percent recovery or one hundred percent recovery at a time, and the recovery ratio may be any applicable value, which is not limited in this embodiment. Since the recovery ratio setting of the improved protocol is higher than the value set by other protocols, after the network is restored, the improved protocol can be quickly restored to the transmission speed before blocking.

2 is a schematic flow chart of a method for transmitting a stream data according to a second embodiment of the present invention, which may specifically include the following steps:

Step 201: Receive protocol configuration information that is sent by the management terminal to the current transit node.

In the embodiment of the present invention, the specific manner is consistent with the description of other embodiments, and details are not described herein.

Step 202: Receive a call request for a transport protocol through a protocol interface.

In the embodiment of the present invention, the specific manner is consistent with the description of other embodiments, and details are not described herein.

Step 203: Determine, in the at least one transmission protocol that meets the corresponding calling condition, that the transmission protocol with the highest priority is an improved protocol based on the user datagram protocol.

In the embodiment of the present invention, the specific manner is consistent with the description of other embodiments, and details are not described herein.

Step 204, establishing a communication link by multiple handshakes.

In the embodiment of the present invention, the specific manner is consistent with the description of other embodiments, and details are not described herein.

Step 205: Perform streaming data transmission based on the selected improved protocol, and receive a feedback response message.

In the embodiment of the present invention, the specific manner is consistent with the description of other embodiments, and details are not described herein.

Step 206: Monitor the current transmission status of the stream data in real time, and determine whether the current transmission status satisfies the set transmission requirement.

In the embodiment of the present invention, the current transmission state refers to the transmission speed when the stream data is transmitted, the network fluctuation situation, etc., and the setting transmission requirement refers to the set transmission speed or the degree of network fluctuation, etc., and monitors the current transmission state of the stream data. Determine whether the transmission speed or network fluctuation degree meets the set transmission requirement, for example, whether the transmission speed is greater than the set transmission speed, and whether the network fluctuation degree is less than the set fluctuation degree. Specifically, any applicable transmission requirement can be set, which is not limited in this embodiment.

In an embodiment of the present invention, preferably, the current transmission state includes a receiving time of the response message, and a preferred implementation manner of determining whether the current transmission state meets the configured transmission requirement is: determining, for the flow data packet, The receiving time of the response message is within a set time period after the stream packet is sent, and if so, it is determined that the set transmission request is satisfied.

The current transmission state includes the receiving time of the response message, and the receiving time of the response message of the plurality of streaming data packets is determined within a set time period after the streaming data packet is sent, and the set time period may be any applicable time length, which is implemented by the present invention. This example does not limit this. If so, it is determined that the set transmission request is satisfied, and if not, it is determined that the set transmission request is not satisfied.

Step 207: When the current transmission state does not meet the set transmission requirement, select a transmission protocol with the highest priority that meets the corresponding calling condition from the remaining transmission protocols, and switch to the reselected transmission protocol.

In the embodiment of the present invention, when the current transmission status does not meet the set transmission requirement, for example, the reception time of the response information of the stream data packet is outside the set time period after the stream data packet is sent. From the remaining transmission protocols, the transmission protocol with the highest priority that satisfies the corresponding calling condition is selected and switched to the reselected transmission protocol.

Step 208: Find the last successfully transmitted target stream data packet according to the received at least one response message.

In the embodiment of the present invention, the response message records the information that each stream data packet is successfully accepted, and finds the last successfully sent stream data packet according to the received at least one response message, and the found stream data packet is the target stream. data pack.

In the embodiment of the present invention, preferably, the response message records the number of each sent stream packet, and the identifier is used to find the last successfully sent target stream packet according to the received at least one response message. The method is: searching, from the at least one response message, at least one stream data packet that is successfully sent; and determining, from the at least one stream data packet, the stream data packet whose last number of the transmission number is sorted as the target stream data packet.

The response message records the number of each stream packet that has been sent. Each stream packet corresponds to a number, and the information corresponding to each number identifier is successfully sent. From at least one response message, at least one stream data packet that is successfully transmitted is searched, and from the stream data packet that is searched, the stream data packet whose transmission number is sorted to the last bit is determined as the target stream data packet.

Step 209, starting with the next stream packet of the target stream packet, starting the transmission of the stream data under the reselected transport protocol.

In the embodiment of the present invention, the stream data is transmitted based on the reselected transport protocol starting from the next stream packet of the target stream packet. For example, you can switch to the TCP protocol for streaming data transmission.

In summary, according to the embodiment of the present invention, by receiving the protocol configuration information that is sent by the management terminal to the current transit node, receiving a call request for the transport protocol through the protocol interface, and determining that at least one transport protocol that meets the corresponding calling condition is prioritized The highest-level transmission protocol is an improved protocol based on the user datagram protocol. The communication link is established through multiple handshakes, the stream data is transmitted based on the selected improved protocol, and the feedback response message is received, so that the data can be transmitted according to the history. Different network operators, regions, etc. select the applicable transmission protocol, and also propose an improved protocol with low delay and reliability than the UDP protocol, which realizes the transmission of stream data for selecting different applicable network protocols for different network conditions, and A preferred improved protocol has also been proposed, which solves the problem of high delay of the general public stream data transmission protocol.

Further, according to the real-time transmission status, it is determined whether the currently selected transmission protocol can meet the transmission requirement, and the stream data transmission is switched according to the calling condition and the priority to other available transmission protocols, thereby increasing the reliability of the stream data transmission.

Referring to FIG. 3, a schematic flowchart of a step of a method for transmitting stream data according to a third embodiment of the present invention is shown, which may specifically include the following steps:

Step 301: Receive protocol configuration information that is sent by the management terminal to the current transit node.

In the embodiment of the present invention, the specific manner is consistent with the description of other embodiments, and details are not described herein.

Step 302: Receive a call request for a transport protocol through a protocol interface.

In the embodiment of the present invention, the specific manner is consistent with the description of other embodiments, and details are not described herein.

Step 303: Determine, in the at least one transmission protocol that meets the corresponding calling condition, that the transmission protocol with the highest priority is an improved protocol based on the user datagram protocol.

In the embodiment of the present invention, the specific manner is consistent with the description of other embodiments, and details are not described herein.

In step 304, a communication link is established by multiple handshakes.

In the embodiment of the present invention, the specific manner is consistent with the description of other embodiments, and details are not described herein.

Step 305: Perform stream data transmission based on the selected improved protocol, and receive a feedback response message.

In the embodiment of the present invention, the specific manner is consistent with the description of other embodiments, and details are not described herein.

Step 306: Parse the transmission result of each sent data packet from the received response message.

In the embodiment of the present invention, the result of sending the sent data packet is parsed from the received response message, which may be the number corresponding to the recorded stream data packet in the response message, and whether the corresponding number is successfully sent. By parsing the response message, it is possible to accurately determine which packet has been lost and which packet has been successfully received by the receiving end.

Step 307: Find a stream packet whose transmission result is a transmission failure, and retransmit the stream packet that is found.

In the embodiment of the present invention, according to the response message, the flow data packet whose transmission result is failed to be sent, that is, the flow data packet that is not successfully received by the receiving end, is searched, and the stream data packet that is found is immediately retransmitted, without the TCP protocol. Wait until the timeout is repeated.

In summary, according to the embodiment of the present invention, by receiving the protocol configuration information that is sent by the management terminal to the current transit node, receiving a call request for the transport protocol through the protocol interface, and determining that at least one transport protocol that meets the corresponding calling condition is prioritized The highest-level transmission protocol is an improved protocol based on the user datagram protocol. The communication link is established through multiple handshakes, the stream data is transmitted based on the selected improved protocol, and the feedback response message is received, so that the data can be transmitted according to the history. Different network operators, regions, etc. select the applicable transmission protocol, and also propose an improved protocol with low delay and reliability than the UDP protocol, which realizes the transmission of stream data for selecting different applicable network protocols for different network conditions, and A preferred improved protocol has also been proposed, which solves the problem of high delay of the general public stream data transmission protocol.

Further, according to the response message, it is determined that the lost stream data packet is retransmitted immediately, without waiting for the timeout to be retransmitted, and there is no need to retransmit the stream data packet as in the TCP protocol, thereby improving the real-time performance of the packet loss retransmission and The efficiency of retransmission.

Referring to FIG. 4, a block diagram of a structure of a stream data transmission apparatus according to Embodiment 4 of the present invention is shown, which may specifically include the following modules:

The configuration information receiving module 401 is configured to receive protocol configuration information that is sent by the management terminal to the current transit node, where the protocol configuration information includes a calling condition and a priority configured for each transport protocol, where the protocol configuration information is based on multiple clients. Generating a historical transmission state under each transmission protocol, where the calling condition includes at least one of a network operator used by the current device and a geographical location;

The call request receiving module 402 is configured to receive a call request for a transport protocol by using a protocol interface, where the protocol interface encapsulates multiple transport protocols;

The improved protocol determining module 403 is configured to determine, in the at least one transmission protocol that meets the corresponding calling condition, that the highest priority transmission protocol is an improved protocol based on the user datagram protocol;

a communication link establishing module 404, configured to establish a communication link by multiple handshakes;

The stream data transmission module 405 is configured to perform stream data transmission based on the selected improved protocol, and receive a feedback response message, where each response message records a transmission result of the plurality of sent stream data packets.

In an embodiment of the present invention, preferably, the device further includes:

The transmission status monitoring module is configured to monitor the current transmission status of the stream data in real time, and determine whether the current transmission status satisfies the set transmission requirement.

In the embodiment of the present invention, preferably, the current transmission status includes a receiving time of the response message, and the transmission status monitoring module includes:

The time judging submodule is configured to determine that the receiving time of the response message for the streaming data packet is within a set time period after the streaming data packet is sent, and if yes, determining that the set transmission request is satisfied.

In an embodiment of the present invention, preferably, the device further includes:

And a transmission protocol switching module, configured to: when the current transmission state does not meet the set transmission requirement, select a transmission protocol with the highest priority that meets the corresponding calling condition from the remaining transmission protocols, and switch to the reselected transmission protocol.

In an embodiment of the present invention, preferably, the device further includes:

a packet search module, configured to search for a last successfully sent target stream data packet according to the received at least one response message;

A protocol reselection module is configured to start streaming data transmission from a next stream data packet of the target stream data packet under the reselected transport protocol.

In the embodiment of the present invention, preferably, the number of each sent stream data packet is recorded in the response message, and the data packet search module includes:

a stream packet searching submodule, configured to: find, from the at least one response message, at least one stream packet that is successfully sent;

The stream packet determining submodule is configured to determine, from the found at least one stream packet, a stream packet whose last number of the transmission number is sorted as a target stream packet.

In an embodiment of the present invention, preferably, the device further includes:

a sending result parsing module, configured to parse a sending result of each sent data packet from the received response message;

The stream packet retransmission module is configured to search for a stream packet whose transmission result is failed to be transmitted, and retransmit the stream packet to be searched.

In an embodiment of the present invention, preferably, the device further includes:

a change value calculation module, configured to calculate a change value of a receive frequency of the plurality of response messages received in sequence;

The transmission jam determination module is configured to determine that a transmission jam occurs if the change value of the reception frequency exceeds a set threshold.

In an embodiment of the present invention, preferably, the method further includes:

a reduction ratio finding module, configured to find a reduction ratio of a cache space set for an improved protocol, where the cache space is used to store a stream data packet to be sent, and the reduction ratio of the improvement protocol is smaller than a reduction ratio of other transmission protocols;

The storage capacity reduction module is configured to reduce the normal value of the storage capacity of the cache space under non-transport congestion according to the reduced ratio of the search.

In an embodiment of the present invention, preferably, the method further includes:

The recovery ratio finding module is configured to search for a recovery ratio of the cache space set for the improved protocol if the problem of detecting the transmission congestion is removed, and the recovery ratio of the improved protocol is greater than the recovery ratio of other transmission protocols;

The storage capacity resetting module is configured to reset the current storage capacity of the cache space at least once according to the restored recovery ratio until the storage capacity returns to a normal value under the non-transport congestion.

In summary, according to the embodiment of the present invention, by receiving the protocol configuration information that is sent by the management terminal to the current transit node, receiving a call request for the transport protocol through the protocol interface, and determining that at least one transport protocol that meets the corresponding calling condition is prioritized The highest-level transmission protocol is an improved protocol based on the user datagram protocol. The communication link is established through multiple handshakes, the stream data is transmitted based on the selected improved protocol, and the feedback response message is received, so that the data can be transmitted according to the history. Different network operators, regions, etc. select the applicable transmission protocol, and also propose an improved protocol with low delay and reliability than the UDP protocol, which realizes the transmission of stream data for selecting different applicable network protocols for different network conditions, and A preferred improved protocol has also been proposed, which solves the problem of high delay of the general public stream data transmission protocol.

The various component embodiments of the present invention may be implemented in hardware, or in a software module running on one or more processors, or in a combination thereof. It will be understood by those skilled in the art that a microprocessor or digital signal processor (DSP) may be used in practice to implement some or some of some or all of the components of the method and apparatus for transmitting streaming data in accordance with embodiments of the present invention. All features. The invention can also be implemented as a device or device program (e.g., a computer program and a computer program product) for performing some or all of the methods described herein. Such a program implementing the invention may be stored on a computer readable medium or may be in the form of one or more signals. Such signals may be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.

For example, Figure 5 illustrates a transport computing device, such as an application server, that can implement streaming data in accordance with the present invention. The computing device conventionally includes a processor 510 and a computer program product or computer readable medium in the form of a memory 520. The memory 520 may be an electronic memory such as a flash memory, an EEPROM (Electrically Erasable Programmable Read Only Memory), an EPROM, a hard disk, or a ROM. Memory 520 has a memory space 530 for program code 531 for performing any of the method steps described above. For example, storage space 530 for program code may include various program code 531 for implementing various steps in the above methods, respectively. The program code can be read from or written to one or more computer program products. These computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards or floppy disks. Such computer program products are typically portable or fixed storage units as described with reference to FIG. The storage unit may have storage segments, storage spaces, and the like that are similarly arranged to memory 520 in the computing device of FIG. The program code can be compressed, for example, in an appropriate form. Typically, the storage unit includes computer readable code 531 ', ie, code readable by a processor, such as 510, that when executed by a computing device causes the computing device to perform each of the methods described above step.

"an embodiment," or "an embodiment," or "an embodiment," In addition, it is noted that the phrase "in one embodiment" is not necessarily referring to the same embodiment.

In the description provided herein, numerous specific details are set forth. However, it is understood that the embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of the description.

It is to be noted that the above-described embodiments are illustrative of the invention and are not intended to be limiting, and that the invention may be devised without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as a limitation. The word "comprising" does not exclude the presence of the elements or steps that are not recited in the claims. The word "a" or "an" The invention can be implemented by means of hardware comprising several distinct elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means can be embodied by the same hardware item. The use of the words first, second, and third does not indicate any order. These words can be interpreted as names.

In addition, it should be noted that the language used in the specification has been selected for the purpose of readability and teaching, and is not intended to be construed or limited. Therefore, many modifications and changes will be apparent to those skilled in the art without departing from the scope of the invention. The disclosure of the present invention is intended to be illustrative, and not restrictive, and the scope of the invention is defined by the appended claims.

Claims (22)

A method for transmitting stream data, comprising: Receiving protocol configuration information that is sent by the management terminal to the current transit node; the protocol configuration information includes a calling condition and a priority configured for each transport protocol, and the protocol configuration information is transmitted according to history of multiple clients under each transport protocol. a state generation, where the calling condition includes at least one of a network operator used by the current device and a geographical location; Receiving a call request to a transport protocol through a protocol interface, the protocol interface encapsulating a plurality of transport protocols; Determining, in the at least one transmission protocol that meets the corresponding calling condition, the transmission protocol with the highest priority is an improved protocol based on the user datagram protocol; Establishing a communication link by multiple handshakes; The stream data is transmitted based on the selected improved protocol, and the feedback response message is received, and each response message records the transmission result of the plurality of sent stream packets. The method of claim 1 wherein the method further comprises: The current transmission status of the stream data is monitored in real time, and it is determined whether the current transmission status satisfies the set transmission requirement. The method according to claim 2, wherein the current transmission status comprises a reception time of the response message, and the determining whether the current transmission status satisfies the set transmission requirement comprises: The receiving time of the response message for the streaming packet is determined within a set time period after the streaming packet is sent, and if so, it is determined that the set transmission request is satisfied. The method of claim 2, wherein the method further comprises: When the current transmission state does not satisfy the set transmission requirement, from the remaining transmission protocols, the transmission protocol with the highest priority that satisfies the corresponding calling condition is selected, and switched to the reselected transmission protocol. The method of claim 4 wherein the method further comprises: Finding the last successfully transmitted target stream data packet according to the received at least one response message; Under the reselected transport protocol, the transport of the stream data begins from the next stream packet of the target stream packet. The method according to claim 5, wherein the number of each sent stream packet is recorded in the response message, and the searching for the last successfully transmitted target stream packet according to the received at least one response message comprises: Finding at least one stream data packet that is successfully sent from the at least one response message; From the found at least one stream packet, the stream packet whose last number of the transmission number is sorted is determined as the target stream packet. The method of claim 1 wherein the method further comprises: Parsing the transmission result of each transmitted data packet from the received response message; Find the stream packet whose transmission result is failed to be sent, and retransmit the stream packet that is found. The method of claim 1 wherein the method further comprises: Calculating a change value of a receiving frequency of a plurality of response messages received in sequence; If the change value of the reception frequency exceeds the set threshold, it is determined that a transmission jam has occurred. The method of claim 8 further comprising: Finding a reduction ratio of a cache space set for an improved protocol for storing a stream packet to be sent, the reduction ratio of the improvement protocol being smaller than a reduction ratio of other transmission protocols; According to the reduced ratio of the lookup, the normal value of the storage capacity of the cache space under non-transport congestion is reduced. The method of claim 9 further comprising: If the problem of detecting the transmission jam is released, the recovery ratio of the cache space set for the improved protocol is searched, and the recovery ratio of the improved protocol is greater than the recovery ratio of other transmission protocols; The current storage capacity of the cache space is reset at least once according to the restored recovery ratio until the storage capacity is restored to a normal value under non-transport congestion. A stream data transmission device comprising: a configuration information receiving module, configured to receive protocol configuration information that is sent by the management terminal to the current transit node; the protocol configuration information includes a calling condition and a priority configured for each transport protocol, where the protocol configuration information is based on multiple clients. The historical transmission status of each transmission protocol is generated, and the calling condition includes at least one of a network operator used by the current device and a geographical location; Calling a request receiving module, configured to receive a call request for a transport protocol by using a protocol interface, where the protocol interface encapsulates multiple transport protocols; An improved protocol determining module, configured to determine, in the at least one transmission protocol that meets the corresponding calling condition, the highest priority transmission protocol is an improved protocol based on a user datagram protocol; a communication link establishing module, configured to establish a communication link by multiple handshakes; The stream data transmission module is configured to perform stream data transmission according to the selected improved protocol, and receive the feedback response message, and each response message records the transmission result of the plurality of sent stream data packets. The apparatus of claim 11 wherein said apparatus further comprises: The transmission status monitoring module is configured to monitor the current transmission status of the stream data in real time, and determine whether the current transmission status satisfies the set transmission requirement. The apparatus of claim 12, wherein the current transmission status comprises a response time of a response message, the transmission status monitoring module comprising: The time judging submodule is configured to determine that the receiving time of the response message for the streaming data packet is within a set time period after the streaming data packet is sent, and if yes, determining that the set transmission request is satisfied. The device of claim 12, wherein the device further comprises: And a transmission protocol switching module, configured to: when the current transmission state does not meet the set transmission requirement, select a transmission protocol with the highest priority that meets the corresponding calling condition from the remaining transmission protocols, and switch to the reselected transmission protocol. The apparatus of claim 14 wherein said apparatus further comprises: a packet search module, configured to search for a last successfully sent target stream data packet according to the received at least one response message; A protocol reselection module is configured to start streaming data transmission from a next stream data packet of the target stream data packet under the reselected transport protocol. The apparatus according to claim 15, wherein the number of each sent stream packet is recorded in the response message, and the packet lookup module includes: a stream packet searching submodule, configured to: find, from the at least one response message, at least one stream packet that is successfully sent; The stream packet determining submodule is configured to determine, from the found at least one stream packet, a stream packet whose last number of the transmission number is sorted as a target stream packet. The apparatus of claim 11 wherein said apparatus further comprises: a sending result parsing module, configured to parse a sending result of each sent data packet from the received response message; The stream packet retransmission module is configured to search for a stream packet whose transmission result is failed to be transmitted, and retransmit the stream packet to be searched. The apparatus of claim 11 wherein said apparatus further comprises: a change value calculation module, configured to calculate a change value of a receive frequency of the plurality of response messages received in sequence; The transmission jam determination module is configured to determine that a transmission jam occurs if the change value of the reception frequency exceeds a set threshold. The apparatus of claim 18, further comprising: a reduction ratio search module, configured to find a reduction ratio of a cache space set for an improved protocol, where the cache space is used to store a flow data packet to be sent, and the reduction ratio of the improvement protocol is smaller than a reduction ratio of other transmission protocols; The storage capacity reduction module is configured to reduce the normal value of the storage capacity of the cache space under non-transport congestion according to the reduced ratio of the search. The apparatus of claim 19, further comprising: The recovery ratio finding module is configured to search for a recovery ratio of the cache space set for the improved protocol if the problem of detecting the transmission congestion is removed, and the recovery ratio of the improved protocol is greater than the recovery ratio of other transmission protocols; The storage capacity resetting module is configured to reset the current storage capacity of the cache space at least once according to the restored recovery ratio until the storage capacity returns to a normal value under the non-transport congestion. A computer program comprising computer readable code, when said computer readable code is run on a computing device, causing said computing device to perform a method of transmitting stream data according to any of claims 1-10. A computer readable medium storing the computer program of claim 21.

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