CN106612284B - Streaming data transmission method and device - Google Patents
Streaming data transmission method and device Download PDFInfo
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- CN106612284B CN106612284B CN201611265809.2A CN201611265809A CN106612284B CN 106612284 B CN106612284 B CN 106612284B CN 201611265809 A CN201611265809 A CN 201611265809A CN 106612284 B CN106612284 B CN 106612284B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/02—Protocol performance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
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Abstract
The invention discloses a method and a device for transmitting streaming data. The method comprises the following steps: receiving protocol configuration information sent to a current transmission node by a management end; receiving a call request for a transmission protocol through a protocol interface, wherein the protocol interface encapsulates a plurality of transmission protocols; determining that the transmission protocol with the highest priority is an improved protocol based on a user datagram protocol in at least one transmission protocol meeting the corresponding calling condition; establishing a communication link through multiple handshakes; and transmitting the streaming data based on the selected improved protocol, and receiving feedback response messages, wherein each response message records the transmission results of a plurality of transmitted streaming data packets. The scheme realizes that the suitable transmission protocol is selected for transmitting the stream data according to different network conditions, and solves the problem of high delay of the common stream data transmission protocol.
Description
Technical Field
The invention relates to the technical field of streaming data transmission, in particular to a streaming data transmission method and a streaming data transmission device.
Background
Stream data is data that can be transmitted over a network by using a Streaming transmission method, and for a Streaming data service, there are many common and open Streaming data transmission protocols, such as RTMP (Real Time Messaging Protocol), HLS (HTTP Live Streaming, Streaming media network transmission Protocol based on HTTP), RTP (Real-Time transport Protocol, a transport layer Protocol for multimedia data streams on the Internet), and the like.
However, both the RTMP, HLS and RTP protocols have a problem of high delay, and UDP (user datagram Protocol) is directly used, so that the delay is low, but many operators may intercept the streaming data transmission of the UDP Protocol. And the applicable transmission protocol cannot be selected for different network conditions to transmit the streaming data.
Disclosure of Invention
In view of the above problems, the present invention has been made to provide a streaming data transmission method and a corresponding apparatus that overcome or at least partially solve the above problems.
According to an aspect of the present invention, there is provided a streaming data transmission method, including:
receiving protocol configuration information sent to a current transmission node by a management end; the protocol configuration information comprises calling conditions and priorities configured for each transmission protocol, the protocol configuration information is generated according to historical transmission states of a plurality of clients under each transmission protocol, and the calling conditions comprise at least one of a network operator used by current equipment and a region where the network operator is located;
receiving a call request for a transmission protocol through a protocol interface, wherein the protocol interface encapsulates a plurality of transmission protocols;
determining that the transmission protocol with the highest priority is an improved protocol based on a user datagram protocol in at least one transmission protocol meeting the corresponding calling condition;
establishing a communication link through multiple handshakes;
and transmitting the streaming data based on the selected improved protocol, and receiving feedback response messages, wherein each response message records the transmission results of a plurality of transmitted streaming data packets.
Optionally, the method further comprises:
and monitoring the current transmission state of the streaming data in real time, and judging whether the current transmission state meets the set transmission requirement.
Optionally, the current transmission state includes a receiving time of a response message, and the determining whether the current transmission state meets a set transmission requirement includes:
and judging that the receiving time of the response message aiming at the stream data packet is within a set time period after the stream data packet is sent out, and if so, determining that the set transmission requirement is met.
Optionally, the method further comprises:
and when the current transmission state does not meet the set transmission requirement, selecting the transmission protocol with the highest priority meeting the corresponding calling condition from the rest transmission protocols, and switching to the newly selected transmission protocol.
Optionally, the method further comprises:
searching the last successfully sent target stream data packet according to the received at least one response message;
and under the reselected transmission protocol, starting the transmission of the streaming data from the next streaming data packet of the target streaming data packet.
Optionally, the recording, in the response message, a number of each sent stream packet, and the searching for a last successfully sent target stream packet according to the received at least one response message includes:
searching at least one streaming data packet which is successfully sent from at least one response message;
and determining the stream data packet with the last transmission number ordering bit as a target stream data packet from the searched at least one stream data packet.
Optionally, the method further comprises:
analyzing the transmission result of each transmitted data packet from the received response message;
and searching the streaming data packet with the transmission result of failed transmission, and retransmitting the searched streaming data packet.
Optionally, the method further comprises:
calculating a variation value of a reception frequency of a plurality of response messages received in sequence;
and if the change value of the receiving frequency exceeds a set threshold value, determining that transmission blockage occurs.
Optionally, the method further comprises:
searching a reduction ratio of a cache space set for an improved protocol, wherein the cache space is used for storing a streaming data packet to be sent, and the reduction ratio of the improved protocol is smaller than that of other transmission protocols;
and according to the searched reduction ratio, reducing the normal value of the storage capacity of the cache space under the condition of non-transmission blockage.
Optionally, the method further comprises:
if the problem of transmission blockage is detected to be solved, searching a recovery proportion of a cache space set for an improved protocol, wherein the recovery proportion of the improved protocol is larger than the recovery proportions of other transmission protocols;
and resetting the current storage capacity of the cache space at least once according to the searched recovery proportion until the storage capacity is recovered to a normal value under the non-transmission blockage condition.
According to another aspect of the present invention, there is provided a streaming data transmission apparatus including:
the configuration information receiving module is used for receiving protocol configuration information which is issued to the current transmission node by the management terminal; the protocol configuration information comprises calling conditions and priorities configured for each transmission protocol, the protocol configuration information is generated according to historical transmission states of a plurality of clients under each transmission protocol, and the calling conditions comprise at least one of a network operator used by current equipment and a region where the network operator is located;
the device comprises a calling request receiving module, a transmission protocol receiving module and a calling request transmitting module, wherein the calling request receiving module is used for receiving a calling request of a transmission protocol through a protocol interface, and the protocol interface is packaged with a plurality of transmission protocols;
the improved protocol determining module is used for determining that the transmission protocol with the highest priority is an improved protocol based on a user datagram protocol in at least one transmission protocol meeting the corresponding calling condition;
a communication link establishing module for establishing a communication link by multiple handshakes;
and the streaming data transmission module is used for transmitting streaming data based on the selected improved protocol and receiving feedback response messages, and each response message records the transmission results of a plurality of transmitted streaming data packets.
Optionally, the apparatus further comprises:
and the transmission state monitoring module is used for monitoring the current transmission state of the streaming data in real time and judging whether the current transmission state meets the set transmission requirement.
Optionally, the current transmission status includes a receiving time of a response message, and the transmission status monitoring module includes:
and the time judgment submodule is used for judging that the receiving time of the response message aiming at the streaming data packet is within a set time period after the streaming data packet is sent out, and if so, determining that the set transmission requirement is met.
Optionally, the apparatus further comprises:
and the transmission protocol switching module is used for selecting the transmission protocol with the highest priority meeting the corresponding calling condition from the rest transmission protocols and switching to the newly selected transmission protocol when the current transmission state does not meet the set transmission requirement.
Optionally, the apparatus further comprises:
the data packet searching module is used for searching the last target stream data packet which is successfully sent according to the received at least one response message;
and the protocol reselection module is used for starting the transmission of the streaming data from the next streaming data packet of the target streaming data packet under the reselected transmission protocol.
Optionally, the response message records a number of each sent stream data packet, and the data packet searching module includes:
the flow data packet searching submodule is used for searching at least one flow data packet which is successfully sent from at least one response message;
and the flow data packet determining submodule is used for determining the flow data packet with the last transmission serial number sequencing bit as a target flow data packet from the searched at least one flow data packet.
Optionally, the apparatus further comprises:
the sending result analysis module is used for analyzing the sending result of each sent data packet from the received response message;
and the streaming data packet retransmission module is used for searching the streaming data packet with the transmission result of failed transmission and retransmitting the searched streaming data packet.
Optionally, the apparatus further comprises:
the change value calculating module is used for calculating the change values of the receiving frequency of a plurality of response messages received in sequence;
and the transmission jam determining module is used for determining that transmission jam occurs if the change value of the receiving frequency exceeds a set threshold value.
Optionally, the method further comprises:
the system comprises a reduced proportion searching module, a reduced proportion searching module and a sending module, wherein the reduced proportion searching module is used for searching a reduced proportion of a cache space set aiming at an improved protocol, the cache space is used for storing a streaming data packet to be sent, and the reduced proportion of the improved protocol is smaller than that of other transmission protocols;
and the storage capacity reducing module is used for reducing the normal value of the storage capacity of the cache space under the non-transmission blockage condition according to the searched reduction proportion.
Optionally, the method further comprises:
the recovery ratio searching module is used for searching the recovery ratio of the cache space set for the improved protocol if the problem of transmission blockage is detected to be relieved, wherein the recovery ratio of the improved protocol is larger than the recovery ratios of other transmission protocols;
and the storage capacity resetting module is used for resetting the current storage capacity of the cache space at least once according to the searched recovery proportion until the storage capacity is recovered to a normal value under the non-transmission blockage condition.
According to the streaming data transmission method and device, the protocol configuration information sent to the current transmission node by the receiving management end is received, the call request of the transmission protocol is received through the protocol interface, the transmission protocol with the highest priority in at least one transmission protocol meeting the corresponding call condition is determined to be an improved protocol based on a user datagram protocol, a communication link is established through multiple handshaking, the streaming data is transmitted based on the selected improved protocol, and the feedback response message is received, so that the applicable transmission protocol can be selected for different network operators, regions and the like according to historical transmission data, an improved protocol with low delay and reliability compared with a UDP protocol is provided, the streaming data is transmitted by selecting the applicable transmission protocol for different network conditions, and a preferred improved protocol is provided, the problem of high delay of a common stream data transmission protocol is solved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic flow chart illustrating steps of a method for transmitting streaming data according to a first embodiment of the present invention;
fig. 2 is a flow chart illustrating steps of a streaming data transmission method according to a second embodiment of the present invention;
fig. 3 is a flow chart illustrating steps of a method for transmitting streaming data according to a third embodiment of the present invention;
fig. 4 is a block diagram showing a configuration of a streaming data transmission apparatus according to a fourth embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1, a schematic flow chart illustrating steps of a streaming data transmission method according to an embodiment of the present invention is shown, which may specifically include the following steps:
step 101, receiving protocol configuration information sent by a management end to a current transmission node.
Streaming data is data that can be transmitted over a network in a streaming manner, and the streaming data can be transmitted from one node to at least one transmission node. A transport node is a server that may be used to receive, store, 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 transmission protocol, where the calling condition includes at least one of a network operator used by the current device and a region where the current device is located, and the priority is a priority for calling each transmission protocol when the calling conditions are the same. The protocol configuration information may be generated from historical transmission states of the plurality of clients under the respective transmission protocols. For example, the configuration information for calling the transport protocol according to the network operator and/or the region where the current device is located is generated according to the transmission speed, network fluctuation conditions and the like under each transport protocol reported by the multiple clients.
In the embodiment of the present invention, the transport protocol refers to a protocol of a transport layer, and is mainly used for transporting stream data among various devices such as servers, personal computers, mobile terminals, and the like. Specifically, the Protocol may include TCP (transmission control Protocol, chinese name: transmission control Protocol), UDP (User Datagram Protocol, chinese name: User Datagram Protocol, english, etc. The management terminal is a server for generating the protocol configuration information, the management terminal can receive historical transmission states reported by a plurality of client terminals, generate the protocol configuration information according to the historical transmission states, send the protocol configuration information to each transmission node, and the current transmission node receives the protocol configuration information sent by the management terminal.
Step 102, receiving a call request for a transmission protocol through a protocol interface.
In the embodiment of the present invention, the protocol interface is an interface in which a plurality of transport protocols are encapsulated, and the call request refers to a request for selecting a transport protocol for transmitting 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 transmission control protocol, user datagram protocol, and other transport protocols.
And 103, determining that the transmission protocol with the highest priority is an improved protocol based on a user datagram protocol in at least one transmission protocol meeting the corresponding calling condition.
In the embodiment of the present invention, the at least one transmission protocol that satisfies the invocation condition refers to at least one applicable transmission protocol determined according to the network operator and the region of the current device corresponding to the invocation request. And selecting the transmission protocol with the highest priority from at least one transmission protocol meeting the calling condition, wherein the transmission protocol with the highest priority is an improved protocol based on a user datagram protocol. The improved protocol is a protocol for improving a user datagram protocol, and specifically is that after a communication link is established between a protocol connection packet and the other end of transmission through multiple handshaking before transmission of streaming data on the basis of the user datagram protocol, streaming data is transmitted based on the user datagram protocol, feedback response information is received, and each response message records the transmission results of a plurality of transmitted streaming data packets.
Step 104, a communication link is established through multiple handshakes.
In the embodiment of the present invention, the current device may establish a communication link with the other end of the transmission through multiple handshakes, where the communication link is a physical channel between two nodes in the network. For example, the current client may establish a communication link with the server through a four-way handshake. The number of handshakes may be any applicable number, which is not limited in this embodiment.
And 105, transmitting the streaming data based on the selected improved protocol, and receiving a feedback response message.
In the embodiment of the present invention, each response message is a message that records the transmission results of a plurality of transmitted stream packets, and which stream packets are successfully transmitted, which stream packets are not successfully transmitted, the transmission time, and the like can be determined according to the response message.
After the connection is established, the streaming data can be transmitted based on the improved protocol, specifically, the streaming data can be transmitted in the same way as the user datagram protocol, after receiving the data packet of the streaming data, the receiver sends a response message, wherein the response message comprises whether each data packet is received and the sending time, and then receives the feedback response message. Specifically, when streaming data is transmitted, a response message may be fed back for 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 sent from the management end to the current transmission node, receiving a call request for a transport protocol through a protocol interface, determining that the transport protocol with the highest priority among at least one transport protocol satisfying a corresponding call condition is an improved protocol based on a user datagram protocol, establishing a communication link through a plurality of handshakes, transmitting streaming data based on the selected modified protocol, and receive the feedback response message, so that it can select the suitable transmission protocol according to the historical transmission data and different network operators, regions, etc., and also provides a method with low delay, and the improved protocol is more reliable than the UDP protocol, realizes the selection of the suitable transmission protocol for the transmission of the streaming data according to different network conditions, and a preferable improved protocol is also provided, which solves the problem of high delay of the commonly-owned streaming data transmission protocol.
In the embodiment of the present invention, preferably, the method may further include the steps of: and calculating the change value of the receiving frequency of a plurality of response messages received in sequence, and determining that transmission jam occurs if the change value of the receiving frequency exceeds a set threshold value.
The receiving frequency is a frequency at which the current device sequentially receives the response messages, the receiving frequency can be obtained according to the receiving time of the plurality of response messages, and then the change value of the receiving frequency of the plurality of response messages sequentially received is calculated, wherein the change value is a value for describing the change size of the receiving frequency. When the receiving frequency changes, the network fluctuates, and according to the improved protocol, if the change value exceeds the set threshold value, the transmission jam can be determined. The setting threshold may be any suitable value, and the present embodiment does not limit this.
One response message corresponds to a plurality of stream data packets, the sending time of the first stream data packet of the plurality of stream data packets is used as the starting time, the time of receiving the response message is used as the ending time, the difference value between the ending time and the starting time is the round-trip delay, and the change value of the receiving frequency of the plurality of response messages received in sequence is calculated, namely the change value of the round-trip delay is calculated.
For example, one way to calculate the variation value of the receiving frequency may be to divide the size of the buffer space by the minimum round-trip delay, subtract the size of the buffer space by the round-trip delay, and multiply by the minimum round-trip delay to obtain the variation value of the receiving frequency; the threshold may be determined by first calculating the round trip delay divided by the size of the buffer space, then taking the average and multiplying by a set coefficient, for example, 0.35. And comparing the calculated change value of the receiving frequency with the obtained set threshold value, and determining that transmission blockage occurs if the change value exceeds the set threshold value.
In the embodiment of the present invention, preferably, a reduction ratio of a buffer space set for an improved protocol is searched, where the buffer space is used for storing a streaming data packet to be sent, the reduction ratio of the improved protocol is smaller than reduction ratios of other transport protocols, and a normal value of a storage capacity of the buffer space under a non-transmission congestion condition is reduced according to the searched reduction ratio.
The buffer space is used for storing the stream data packet to be transmitted, the size of the buffer space is a dynamic value, and the data transmission rate is adjusted according to the size of the buffer space. The buffer space is adjusted to control the speed during transmission. The ratio of reduction or increase in the adjustment of the buffer space is determined according to the setting of the transmission protocol. The scale of reduction of the modified protocol is smaller than the scale of reduction of other transport protocols, e.g. the scale of reduction of the modified protocol setup is smaller than the scale of reduction of the TCP protocol setup. The reduction ratio may be any suitable value, and the embodiment is not limited thereto.
And when the transmission is blocked, searching for the reduction ratio of the cache space set by the improved protocol, and reducing the normal value of the storage capacity of the cache space under the condition of non-transmission blocking according to the reduction ratio set by the improved protocol. Because the reduction ratio of the improved protocol setting is smaller than that of other transmission protocols, more bandwidth is occupied when the network is blocked, and faster transmission speed is obtained.
In the embodiment of the present invention, preferably, if it is detected that the problem of transmission congestion is resolved, a recovery ratio of the buffer space set for an improved protocol is searched, where the recovery ratio of the improved protocol is greater than recovery ratios of other transmission protocols, and according to the searched recovery ratio, the current storage capacity of the buffer space is reset at least once until the storage capacity is restored to a normal value under non-transmission congestion.
If the problem of transmission blockage is detected to be relieved, searching a recovery proportion of the buffer space set by the improved protocol, wherein the recovery proportion of the improved protocol is larger than the recovery proportions of other transmission protocols, and resetting the current storage capacity of the buffer space at least once according to the recovery proportion of the improved protocol until the storage capacity is recovered to a normal value under the condition of non-transmission blockage. For example, the recovery ratio may be set to one percent of recovery each time or one hundred percent of recovery at a time, and the like, and the recovery ratio may be any applicable value, which is not limited in this embodiment. Because the recovery ratio of the improved protocol is set to be higher than the values set by other protocols, the improved protocol can recover to the transmission speed before the jam more quickly after the network is recovered.
Referring to fig. 2, a schematic flow chart illustrating steps of a streaming data transmission method according to a second embodiment of the present invention is shown, which may specifically include the following steps:
In the embodiments of the present invention, the specific manner is consistent with the description of other embodiments, and is not described in detail.
In the embodiments of the present invention, the specific manner is consistent with the description of other embodiments, and is not described in detail.
In the embodiments of the present invention, the specific manner is consistent with the description of other embodiments, and is not described in detail.
In the embodiments of the present invention, the specific manner is consistent with the description of other embodiments, and is not described in detail.
In the embodiments of the present invention, the specific manner is consistent with the description of other embodiments, and is not described in detail.
In the embodiment of the present invention, the current transmission state refers to a transmission speed, a network fluctuation condition, and the like during streaming data transmission, the set transmission request refers to a set transmission speed or a network fluctuation degree, and the like, the current transmission state of the streaming data is monitored, and whether the transmission speed or the network fluctuation degree meets the set transmission request, 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, are determined. Any suitable transmission requirement may be specifically set, and this embodiment does not limit this.
In this embodiment of the present invention, preferably, the current transmission state includes a receiving time of a response message, and one preferred implementation manner of determining whether the current transmission state meets a set transmission requirement is as follows: and judging that the receiving time of the response message aiming at the stream data packet is within a set time period after the stream data packet is sent out, and if so, determining that the set transmission requirement is met.
The current transmission state includes the receiving time of the response message, and it is determined that the receiving time of the response message of the plurality of stream data packets is within a set time period after the stream data packet is sent, where the set time period may be any applicable time length, and the embodiment of the present invention is not limited to this. If so, determining that the set transmission requirement is met, and if not, determining that the set transmission requirement is not met.
In the embodiment of the present invention, when the current transmission state does not satisfy the set transmission requirement, for example, the receiving time of the response information of the stream packet is outside the set time period after the stream packet is sent out. And selecting the transmission protocol with the highest priority meeting the corresponding calling condition from the rest transmission protocols, and switching to the newly selected transmission protocol.
In the embodiment of the invention, the response message records the information whether each stream data packet is successfully received, the last stream data packet successfully sent is searched according to at least one received response message, and the searched stream data packet is the target stream data packet.
In this embodiment of the present invention, preferably, the response message records a number of each sent stream packet, and one implementation manner of searching for the last successfully sent target stream packet according to the received at least one response message is as follows: searching at least one streaming data packet which is successfully sent from at least one response message; and determining the stream data packet with the last transmission number ordering bit as a target stream data packet from the searched at least one stream data packet.
The response message records the number of each sent stream data packet, each stream data packet corresponds to a number, and the number corresponds to information indicating whether the stream data packet is successfully sent or not. And searching at least one stream data packet which is successfully transmitted from the at least one response message, and determining the stream data packet with the transmission number sequenced as the last bit from the searched stream data packets as a target stream data packet.
And step 209, under the reselected transmission protocol, starting the transmission of the streaming data from the next streaming data packet of the target streaming data packet.
In the embodiment of the invention, the stream data is transmitted based on the reselected transmission protocol from the next stream data packet of the target stream data packet. For example, it may switch to TCP protocol for streaming data transmission.
In summary, according to the embodiment of the present invention, by receiving the protocol configuration information sent from the management end to the current transmission node, receiving a call request for a transport protocol through a protocol interface, determining that the transport protocol with the highest priority among at least one transport protocol satisfying a corresponding call condition is an improved protocol based on a user datagram protocol, establishing a communication link through a plurality of handshakes, transmitting streaming data based on the selected modified protocol, and receive the feedback response message, so that it can select the suitable transmission protocol according to the historical transmission data and different network operators, regions, etc., and also provides a method with low delay, and the improved protocol is more reliable than the UDP protocol, realizes the selection of the suitable transmission protocol for the transmission of the streaming data according to different network conditions, and a preferable improved protocol is also provided, which solves the problem of high delay of the commonly-owned streaming data transmission protocol.
Furthermore, whether the currently selected transmission protocol can meet the transmission requirement is judged according to the real-time transmission state, the stream data transmission is realized by switching to other available transmission protocols according to the calling condition and the priority, and the reliability of the stream data transmission is improved.
Referring to fig. 3, a schematic flow chart illustrating steps of a method for transmitting streaming data according to a third embodiment of the present invention is shown, which may specifically include the following steps:
In the embodiments of the present invention, the specific manner is consistent with the description of other embodiments, and is not described in detail.
In the embodiments of the present invention, the specific manner is consistent with the description of other embodiments, and is not described in detail.
In the embodiments of the present invention, the specific manner is consistent with the description of other embodiments, and is not described in detail.
In the embodiments of the present invention, the specific manner is consistent with the description of other embodiments, and is not described in detail.
And 305, transmitting the streaming data based on the selected improved protocol, and receiving a feedback response message.
In the embodiments of the present invention, the specific manner is consistent with the description of other embodiments, and is not described in detail.
In the embodiment of the present invention, the sending result of each sent data packet is analyzed from the received response message, which may specifically be recording a number corresponding to the stream data packet in the response message and information of whether the sending of the corresponding number is successful, and analyzing the response message can accurately determine which packet has been lost and which packet has been successfully received by the receiving end.
In the embodiment of the invention, the stream data packet with the sending result of failed sending, namely the stream data packet which is not successfully received by the receiving end, is searched according to the response message, and the searched stream data packet is retransmitted immediately without waiting for time-out and retransmitting like a TCP protocol.
In summary, according to the embodiment of the present invention, by receiving the protocol configuration information sent from the management end to the current transmission node, receiving a call request for a transport protocol through a protocol interface, determining that the transport protocol with the highest priority among at least one transport protocol satisfying a corresponding call condition is an improved protocol based on a user datagram protocol, establishing a communication link through a plurality of handshakes, transmitting streaming data based on the selected modified protocol, and receive the feedback response message, so that it can select the suitable transmission protocol according to the historical transmission data and different network operators, regions, etc., and also provides a method with low delay, and the improved protocol is more reliable than the UDP protocol, realizes the selection of the suitable transmission protocol for the transmission of the streaming data according to different network conditions, and a preferable improved protocol is also provided, which solves the problem of high delay of the commonly-owned streaming data transmission protocol.
Furthermore, the lost streaming data packet is determined to be retransmitted immediately according to the response message, retransmission is not required after timeout, and the streaming data packet does not need to be retransmitted like a TCP (transmission control protocol), so that the real-time performance of packet loss retransmission and the retransmission efficiency are improved.
Referring to fig. 4, a block diagram of a streaming data transmission apparatus according to a fourth embodiment of the present invention is shown, and may specifically include the following modules:
a configuration information receiving module 401, configured to receive protocol configuration information sent by a management end to a current transmission node; the protocol configuration information comprises calling conditions and priorities configured for each transmission protocol, the protocol configuration information is generated according to historical transmission states of a plurality of clients under each transmission protocol, and the calling conditions comprise at least one of a network operator used by current equipment and a region where the network operator is located;
a call request receiving module 402, configured to receive a call request for a transport protocol through a protocol interface, where the protocol interface encapsulates multiple transport protocols;
an improved protocol determining module 403, configured to determine that, of at least one transmission protocol that meets the corresponding invoking condition, a transmission protocol with the highest priority is an improved protocol based on a user datagram protocol;
a communication link establishing module 404 for establishing a communication link through multiple handshakes;
a streaming data transmission module 405, configured to transmit streaming data based on the selected modified protocol, and receive response messages fed back, where each response message records a transmission result of multiple transmitted streaming data packets.
In the embodiment of the present invention, preferably, the apparatus further includes:
and the transmission state monitoring module is used for monitoring the current transmission state of the streaming data in real time and judging whether the current transmission state meets the set transmission requirement.
In this embodiment of the present invention, preferably, the current transmission status includes a receiving time of a response message, and the transmission status monitoring module includes:
and the time judgment submodule is used for judging that the receiving time of the response message aiming at the streaming data packet is within a set time period after the streaming data packet is sent out, and if so, determining that the set transmission requirement is met.
In the embodiment of the present invention, preferably, the apparatus further includes:
and the transmission protocol switching module is used for selecting the transmission protocol with the highest priority meeting the corresponding calling condition from the rest transmission protocols and switching to the newly selected transmission protocol when the current transmission state does not meet the set transmission requirement.
In the embodiment of the present invention, preferably, the apparatus further includes:
the data packet searching module is used for searching the last target stream data packet which is successfully sent according to the received at least one response message;
and the protocol reselection module is used for starting the transmission of the streaming data from the next streaming data packet of the target streaming data packet under the reselected transmission protocol.
In this embodiment of the present invention, preferably, the response message records a number of each sent stream packet, and the packet searching module includes:
the flow data packet searching submodule is used for searching at least one flow data packet which is successfully sent from at least one response message;
and the flow data packet determining submodule is used for determining the flow data packet with the last transmission serial number sequencing bit as a target flow data packet from the searched at least one flow data packet.
In the embodiment of the present invention, preferably, the apparatus further includes:
the sending result analysis module is used for analyzing the sending result of each sent data packet from the received response message;
and the streaming data packet retransmission module is used for searching the streaming data packet with the transmission result of failed transmission and retransmitting the searched streaming data packet.
In the embodiment of the present invention, preferably, the apparatus further includes:
the change value calculating module is used for calculating the change values of the receiving frequency of a plurality of response messages received in sequence;
and the transmission jam determining module is used for determining that transmission jam occurs if the change value of the receiving frequency exceeds a set threshold value.
In the embodiment of the present invention, it is preferable that:
the system comprises a reduced proportion searching module, a reduced proportion searching module and a sending module, wherein the reduced proportion searching module is used for searching a reduced proportion of a cache space set aiming at an improved protocol, the cache space is used for storing a streaming data packet to be sent, and the reduced proportion of the improved protocol is smaller than that of other transmission protocols;
and the storage capacity reducing module is used for reducing the normal value of the storage capacity of the cache space under the non-transmission blockage condition according to the searched reduction proportion.
In the embodiment of the present invention, it is preferable that:
the recovery ratio searching module is used for searching the recovery ratio of the cache space set for the improved protocol if the problem of transmission blockage is detected to be relieved, wherein the recovery ratio of the improved protocol is larger than the recovery ratios of other transmission protocols;
and the storage capacity resetting module is used for resetting the current storage capacity of the cache space at least once according to the searched recovery proportion until the storage capacity is recovered to a normal value under the non-transmission blockage condition.
In summary, according to the embodiment of the present invention, by receiving the protocol configuration information sent from the management end to the current transmission node, receiving a call request for a transport protocol through a protocol interface, determining that the transport protocol with the highest priority among at least one transport protocol satisfying a corresponding call condition is an improved protocol based on a user datagram protocol, establishing a communication link through a plurality of handshakes, transmitting streaming data based on the selected modified protocol, and receive the feedback response message, so that it can select the suitable transmission protocol according to the historical transmission data and different network operators, regions, etc., and also provides a method with low delay, and the improved protocol is more reliable than the UDP protocol, realizes the selection of the suitable transmission protocol for the transmission of the streaming data according to different network conditions, and a preferable improved protocol is also provided, which solves the problem of high delay of the commonly-owned streaming data transmission protocol.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It will be appreciated by those skilled in the art that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components of a method and apparatus for transmission of streaming data in accordance with embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may 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 may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (16)
1. A method for transmitting streaming data, comprising:
receiving protocol configuration information sent to a current transmission node by a management end; the protocol configuration information comprises calling conditions and priorities configured for each transmission protocol, the protocol configuration information is generated according to historical transmission states of a plurality of clients under each transmission protocol, and the calling conditions comprise at least one of a network operator used by current equipment and a region where the network operator is located;
receiving a call request for a transmission protocol through a protocol interface, wherein the protocol interface encapsulates a plurality of transmission protocols;
determining that the transmission protocol with the highest priority is an improved protocol based on a user datagram protocol in at least one transmission protocol meeting the corresponding calling condition;
establishing a communication link through multiple handshakes;
the method comprises the steps that streaming data are transmitted based on a selected improved protocol, feedback response messages are received, and each response message records the sending results of a plurality of sent streaming data packets;
the method further comprises the following steps:
calculating a variation value of a reception frequency of a plurality of response messages received in sequence;
if the change value of the receiving frequency exceeds a set threshold value, determining that transmission blockage occurs;
further comprising:
searching a reduction ratio of a cache space set for an improved protocol, wherein the cache space is used for storing a streaming data packet to be sent, and the reduction ratio of the improved protocol is smaller than that of other transmission protocols;
and according to the searched reduction ratio, reducing the normal value of the storage capacity of the cache space under the condition of non-transmission blockage.
2. The method of claim 1, wherein the method further comprises:
and monitoring the current transmission state of the streaming data in real time, and judging whether the current transmission state meets the set transmission requirement.
3. The method of claim 2, wherein the current transmission status comprises a time of receipt of a response message, and the determining whether the current transmission status satisfies a set transmission requirement comprises:
and judging that the receiving time of the response message aiming at the stream data packet is within a set time period after the stream data packet is sent out, and if so, determining that the set transmission requirement is met.
4. The method of claim 2, wherein the method further comprises:
and when the current transmission state does not meet the set transmission requirement, selecting the transmission protocol with the highest priority meeting the corresponding calling condition from the rest transmission protocols, and switching to the newly selected transmission protocol.
5. The method of claim 4, wherein the method further comprises:
searching the last successfully sent target stream data packet according to the received at least one response message;
and under the reselected transmission protocol, starting the transmission of the streaming data from the next streaming data packet of the target streaming data packet.
6. The method of claim 5, wherein the response message records the number of each sent stream packet, and the searching for the last successfully sent target stream packet according to the received at least one response message comprises:
searching at least one streaming data packet which is successfully sent from at least one response message;
and determining the stream data packet with the last transmission number ordering bit as a target stream data packet from the searched at least one stream data packet.
7. The method of claim 1, wherein the method further comprises:
analyzing the transmission result of each transmitted data packet from the received response message;
and searching the streaming data packet with the transmission result of failed transmission, and retransmitting the searched streaming data packet.
8. The method of claim 1, further comprising:
if the problem of transmission blockage is detected to be solved, searching a recovery proportion of a cache space set for an improved protocol, wherein the recovery proportion of the improved protocol is larger than the recovery proportions of other transmission protocols;
and resetting the current storage capacity of the cache space at least once according to the searched recovery proportion until the storage capacity is recovered to a normal value under the non-transmission blockage condition.
9. A streaming data transmission apparatus comprising:
the configuration information receiving module is used for receiving protocol configuration information which is issued to the current transmission node by the management terminal; the protocol configuration information comprises calling conditions and priorities configured for each transmission protocol, the protocol configuration information is generated according to historical transmission states of a plurality of clients under each transmission protocol, and the calling conditions comprise at least one of a network operator used by current equipment and a region where the network operator is located;
the device comprises a calling request receiving module, a transmission protocol receiving module and a calling request transmitting module, wherein the calling request receiving module is used for receiving a calling request of a transmission protocol through a protocol interface, and the protocol interface is packaged with a plurality of transmission protocols;
the improved protocol determining module is used for determining that the transmission protocol with the highest priority is an improved protocol based on a user datagram protocol in at least one transmission protocol meeting the corresponding calling condition;
a communication link establishing module for establishing a communication link by multiple handshakes;
the streaming data transmission module is used for transmitting streaming data based on the selected improved protocol and receiving feedback response messages, and each response message records the sending results of a plurality of sent streaming data packets;
wherein the apparatus further comprises:
the change value calculating module is used for calculating the change values of the receiving frequency of a plurality of response messages received in sequence;
the transmission jam determining module is used for determining transmission jam if the change value of the receiving frequency exceeds a set threshold;
further comprising:
the system comprises a reduced proportion searching module, a reduced proportion searching module and a sending module, wherein the reduced proportion searching module is used for searching a reduced proportion of a cache space set aiming at an improved protocol, the cache space is used for storing a streaming data packet to be sent, and the reduced proportion of the improved protocol is smaller than that of other transmission protocols;
and the storage capacity reducing module is used for reducing the normal value of the storage capacity of the cache space under the non-transmission blockage condition according to the searched reduction proportion.
10. The apparatus of claim 9, wherein the apparatus further comprises:
and the transmission state monitoring module is used for monitoring the current transmission state of the streaming data in real time and judging whether the current transmission state meets the set transmission requirement.
11. The apparatus of claim 10, wherein the current transmission status comprises a reception time of a reply message, the transmission status monitoring module comprising:
and the time judgment submodule is used for judging that the receiving time of the response message aiming at the streaming data packet is within a set time period after the streaming data packet is sent out, and if so, determining that the set transmission requirement is met.
12. The apparatus of claim 10, wherein the apparatus further comprises:
and the transmission protocol switching module is used for selecting the transmission protocol with the highest priority meeting the corresponding calling condition from the rest transmission protocols and switching to the newly selected transmission protocol when the current transmission state does not meet the set transmission requirement.
13. The apparatus of claim 12, wherein the apparatus further comprises:
the data packet searching module is used for searching the last target stream data packet which is successfully sent according to the received at least one response message;
and the protocol reselection module is used for starting the transmission of the streaming data from the next streaming data packet of the target streaming data packet under the reselected transmission protocol.
14. The apparatus of claim 13, wherein the response message records the number of each sent stream packet, and the packet lookup module comprises:
the flow data packet searching submodule is used for searching at least one flow data packet which is successfully sent from at least one response message;
and the flow data packet determining submodule is used for determining the flow data packet with the last transmission serial number sequencing bit as a target flow data packet from the searched at least one flow data packet.
15. The apparatus of claim 9, wherein the apparatus further comprises:
the sending result analysis module is used for analyzing the sending result of each sent data packet from the received response message;
and the streaming data packet retransmission module is used for searching the streaming data packet with the transmission result of failed transmission and retransmitting the searched streaming data packet.
16. The apparatus of claim 11, further comprising:
the recovery ratio searching module is used for searching the recovery ratio of the cache space set for the improved protocol if the problem of transmission blockage is detected to be relieved, wherein the recovery ratio of the improved protocol is larger than the recovery ratios of other transmission protocols;
and the storage capacity resetting module is used for resetting the current storage capacity of the cache space at least once according to the searched recovery proportion until the storage capacity is recovered to a normal value under the non-transmission blockage condition.
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| CN201611265809.2A CN106612284B (en) | 2016-12-30 | 2016-12-30 | Streaming data transmission method and device |
| PCT/CN2017/119886 WO2018121742A1 (en) | 2016-12-30 | 2017-12-29 | Method and device for transmitting stream data |
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| CN106612284B (en) * | 2016-12-30 | 2020-02-04 | 北京奇虎科技有限公司 | Streaming data transmission method and device |
| CN109862398A (en) * | 2019-03-29 | 2019-06-07 | 北京奇艺世纪科技有限公司 | Multimedia data transmission method, apparatus and system |
| CN112039686B (en) * | 2019-06-03 | 2023-08-04 | 杭州海康威视系统技术有限公司 | Data stream transmission control method, device, monitoring equipment and storage medium |
| CN110944012B (en) * | 2019-12-16 | 2021-09-10 | 西安电子科技大学 | Anti-protocol analysis data secure transmission method, system and information data processing terminal |
| CN113114606B (en) * | 2020-01-09 | 2023-09-01 | 北京京东振世信息技术有限公司 | Method and device for collecting distribution data |
| CN113259391B (en) * | 2021-06-25 | 2021-10-15 | 北京华云安信息技术有限公司 | Data transmission method and device applied to multi-level node network |
| CN113746755B (en) * | 2021-07-30 | 2023-10-20 | 咪咕文化科技有限公司 | Data processing method, device, equipment and computer readable storage medium |
| CN114844960A (en) * | 2022-03-29 | 2022-08-02 | 武汉斗鱼鱼乐网络科技有限公司 | Data transmission method and related equipment |
| CN115412375B (en) * | 2022-11-01 | 2023-04-18 | 山东省信息技术产业发展研究院(中国赛宝(山东)实验室) | Industrial Internet data protection system |
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