CN114095796A - Invalid retransmission packet reduction method, device, equipment and computer storage medium - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64723—Monitoring of network processes or resources, e.g. monitoring of network load
- H04N21/64738—Monitoring network characteristics, e.g. bandwidth, congestion level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
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- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64746—Control signals issued by the network directed to the server or the client
- H04N21/64761—Control signals issued by the network directed to the server or the client directed to the server
- H04N21/64776—Control signals issued by the network directed to the server or the client directed to the server for requesting retransmission, e.g. of data packets lost or corrupted during transmission from server
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Abstract
The embodiment of the invention provides a method, a device and equipment for reducing invalid retransmission packets and a computer storage medium, wherein the method for reducing the invalid retransmission packets comprises the following steps: calculating retransmission time length according to player parameters configured by a client; determining downlink time delay according to the time delay of a client receiving a network packet from a server within a preset time period; acquiring uplink time delay of a network packet sent by a server receiving client from the server; calculating retransmission time consumption according to the downlink time delay and the uplink time delay, wherein the retransmission time consumption is equal to the sum of the downlink time delay and the uplink time delay; when the retransmission time consumption is less than the retransmission time length, transmitting a retransmission packet; the embodiment of the invention can avoid the uploading of the invalid retransmission packet and solve the problem of computing resource waste caused by the uploading of the invalid retransmission packet in the prior art.
Description
Technical Field
The present invention relates to the field of network transmission quality, and in particular, to a method, an apparatus, a device, and a computer storage medium for reducing invalid retransmission packets.
Background
At present, in the field of home multimedia, an intelligent IPTV set top box is more and more widely used. The IPTV set top box has the outstanding characteristic that a user can watch live programs in a multicast mode. The implementation principle of the method is that live program video signals are packaged into real-time transport protocol (RTP) packets based on a User Datagram Protocol (UDP), and the RTP packets are transmitted to each set top box terminal for decoding and playing through an Internet Group Management Protocol (IGMP) multicast protocol. Because the UDP protocol is not a reliable transmission protocol, packet loss often occurs in a network, and once video data of a live program is lost, an image part or an image frame is lost, in this case, a mosaic or a screen splash is generated in a played video image, which seriously affects user experience of the live program, and at this time, retransmission of a network packet is required.
This is a time consuming process as the retransmitted packet is transmitted through the network. Live broadcasting has certain timeliness requirements, and a retransmission packet is easy to arrive late after video playing is completed, so that the waste of computing resources is caused.
Disclosure of Invention
Embodiments of the present invention provide a method, an apparatus, a device, and a computer storage medium for reducing invalid retransmission packets, which solve the problem of computing resource waste caused by uploading invalid retransmission packets in the prior art.
In a first aspect, an embodiment of the present invention provides a method for reducing invalid retransmission packets, where the method includes:
calculating retransmission time length according to player parameters configured by a client;
determining downlink time delay according to the time delay of a client receiving a network packet from a server within a preset time period;
acquiring uplink time delay of a network packet sent by a server receiving client from the server;
calculating retransmission time consumption according to the downlink time delay and the uplink time delay, wherein the retransmission time consumption is equal to the sum of the downlink time delay and the uplink time delay;
and when the retransmission time consumption is less than the retransmission time length, transmitting the retransmission packet.
Further, in an embodiment, calculating the retransmission time length according to the player parameter configured by the client includes:
and calculating retransmission time length according to the buffer capacity of the player and the average code rate of the film source, wherein the retransmission time length is equal to the buffer capacity of the player divided by the comment code rate of the film source.
Further, in an embodiment, determining the downlink delay according to the delay of the client receiving the network packet from the server within the preset time period includes:
calculating downlink time delay according to the time delay and corresponding weight of each network packet in the network packets received from the server within a preset time period; alternatively, the first and second electrodes may be,
and determining the time delay average value of the network packet received from the server in the preset time period as the downlink time delay.
Further, in one embodiment, the method further comprises:
and when the retransmission time consumption is larger than the retransmission time length, updating the downlink time delay according to the estimated value parameters.
Further, in an embodiment, after the retransmission packet is sent, the method further includes:
and updating the downlink time delay according to the actual downlink time delay of the retransmission packet.
In a second aspect, an embodiment of the present invention provides an apparatus for reducing invalid retransmission packets, including:
the computing module is used for computing retransmission time according to the player parameters configured by the client;
the determining module is used for determining downlink time delay according to the time delay of the client receiving the network packet from the server in a preset time period;
the acquisition module is used for acquiring the uplink time delay of the network packet sent by the client from the server;
the calculation module is further used for calculating retransmission consumed time according to the downlink time delay and the uplink time delay, and the retransmission consumed time is equal to the sum of the downlink time delay and the uplink time delay;
and the sending module is used for sending the retransmission packet when the retransmission time consumption is less than the retransmission time length.
Further, in an embodiment, the calculation module is specifically configured to:
and calculating retransmission time length according to the buffer capacity of the player and the average code rate of the film source, wherein the retransmission time length is equal to the buffer capacity of the player divided by the comment code rate of the film source.
Further, in an embodiment, the determining module is specifically configured to:
calculating downlink time delay according to the time delay and corresponding weight of each network packet in the network packets received from the server within a preset time period; alternatively, the first and second electrodes may be,
and determining the time delay average value of the network packet received from the server in the preset time period as the downlink time delay.
Further, in one embodiment, the apparatus further comprises:
and the updating module is used for updating the downlink time delay according to the estimated value parameter when the retransmission time consumption is larger than the retransmission time length.
Further, in an embodiment, after the retransmission packet is sent, the apparatus further includes:
and the updating module is used for updating the downlink time delay according to the actual downlink time delay of the retransmission packet.
In a third aspect, an embodiment of the present invention provides an apparatus for reducing invalid retransmission packets, where the apparatus includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program when executed by the processor implementing an invalid retransmission packet reduction method.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where an implementation program for information delivery is stored, and when the program is executed by a processor, the implementation program implements an invalid retransmission packet reduction method.
The invalid retransmission packet reduction method, the device, the equipment and the computer storage medium of the embodiment of the invention can avoid uploading the invalid retransmission packet and solve the problem of computing resource waste caused by uploading the invalid retransmission packet in the prior art.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for reducing invalid retransmission packets according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an invalid retransmission packet reduction apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an invalid retransmission packet reduction apparatus according to an embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
At present, in the field of home multimedia, an intelligent IPTV set top box is more and more widely used. The IPTV set top box has the outstanding characteristic that a user can watch live programs in a multicast mode. The realization principle is that live program video signals are packaged into RTP packets based on UDP protocol, and the RTP packets are transmitted to each set top box terminal for decoding and playing through IGMP multicast protocol. Because the UDP protocol is not a reliable transmission protocol, packet loss often occurs in a network, and once video data of a live program is lost, an image part or an image frame is lost, under such a situation, a mosaic or a screen display jam occurs in a played video picture, which seriously affects user experience of the live program.
In the prior art, the problem of network packet loss can be solved by a technical means of requesting retransmission through unicast, but the technical means has certain disadvantages: because the retransmission network packet is transmitted through the network, certain time is consumed in the process, and because the live broadcast has certain timeliness requirements, the problem that the retransmission packet arrives late after the video playing is finished often occurs easily; the delayed arrival retransmission packet belongs to an invalid retransmission packet, but after the delayed arrival retransmission packet reaches the set top box terminal, because the set top box cannot judge whether the network packet is invalid or not, the processing such as receiving, analyzing and sequencing is required, and finally the delayed network packet is discarded, so that the waste of the calculation resources of the set top box is caused.
In order to solve the problem of the prior art, embodiments of the present invention provide a method, an apparatus, a device, and a computer storage medium for reducing invalid retransmission packets. The embodiment of the invention judges whether to send the retransmission packet or not based on the retransmission time length and the estimated retransmission time consumption, can avoid uploading of invalid retransmission packets, and solves the problem of computing resource waste caused by uploading of invalid retransmission packets in the prior art. First, a method for reducing invalid retransmitted packets according to an embodiment of the present invention will be described.
Fig. 1 is a flowchart illustrating a method for reducing invalid retransmission packets according to an embodiment of the present invention. As shown in fig. 1, the method may include the steps of:
and S110, calculating retransmission time length according to the player parameters configured by the client.
Because the player configured by the client directly plays the video, the accuracy of the retransmission time length can be ensured by calculating the retransmission time length based on the parameters of the player.
And S120, determining downlink time delay according to the time delay of the client receiving the network packet from the server in a preset time period.
The downlink delay refers to a time delay from the server to the network packet of the client, and since the retransmission packet is not yet transmitted at this time, a downlink delay needs to be estimated according to a historical delay of receiving the network packet.
And S130, acquiring the uplink time delay of the network packet sent by the client from the server.
The uplink time delay refers to the time delay from the client to the service retransmission request, and the uplink time delay exists in the application scene based on the embodiment of the invention, namely the retransmission request is sent, so that the uplink time delay of the network packet sent by the client can be directly received from the server.
And S140, calculating retransmission time according to the downlink time delay and the uplink time delay, wherein the retransmission time is equal to the sum of the downlink time delay and the uplink time delay.
And calculating retransmission consumed time based on the downlink time delay and the uplink time delay, and considering all consumed time required by the transmission of the retransmission packet, ensuring the accuracy of the calculated retransmission consumed time.
And S150, when the retransmission time consumption is less than the retransmission time length, transmitting the retransmission packet.
The retransmission packet is sent only when the retransmission time consumption is less than the retransmission time, so that the sending of invalid retransmission packets is avoided.
The embodiment of the invention judges whether to transmit the retransmission packet or not based on the retransmission time length and the estimated retransmission time length, and transmits the retransmission packet only when the retransmission time length is less than the retransmission time length, so that the uploading of invalid retransmission packets can be avoided, and further the waste of computing resources caused by the uploading of the invalid retransmission packets is avoided.
In one embodiment, S110 may include:
calculating retransmission time length T according to the player cache capacity H and the film source average code rate R, wherein the retransmission time length is equal to the player cache capacity divided by the film source comment code rate, and T is H/R; because the player configured at the client directly plays the video, the accuracy of the retransmission time length can be ensured by calculating the retransmission time length based on the buffer capacity of the player and the average code rate of the film source.
In one embodiment, S120 may include:
according to the time delay P of each network packet in the network packets received from the server in the preset time periodkAnd corresponding weight WkCalculating downlink time delay T0。
For example, if the number of network packets received from the server in the preset time period is n, the network packets are sent to the server
In one embodiment, S120 may further include:
and determining the time delay average value of the network packet received from the server in the preset time period as the downlink time delay.
The downlink time delay of the embodiment of the invention is estimated and determined based on the time delay of the network packet received by the client from the server in the preset time period, so that the error between the estimated downlink time delay and the actual downlink time delay is extremely small.
In one embodiment, after the retransmission packet is sent, the method may further include:
updating the downlink time delay according to the actual downlink time delay of the retransmission packet; because the downlink delay of the retransmission packet is only strongly associated with the receiving delay of other network packets in a close time period, it needs to be ensured that the downlink delay is estimated and determined according to the delay of receiving the network packet from the server in the closest time period, which requires that the downlink delay needs to be updated in time.
For example, the estimated uplink delay at this time is estimated based on the reception delay of 1 to n network packets. After the retransmission packet is sent, the uplink time delay is updated. Then the next uplink delay is estimated based on the receiving delay of 2 to n +1 network packets, and the receiving delay of the n +1 network packet is the actual downlink delay of the retransmitted packet.
In one embodiment, the method may further comprise:
when the retransmission time consumption is larger than the retransmission time length, updating the downlink time delay according to the estimated value parameter; because the retransmission time consumption is greater than the retransmission time length, the retransmission packet is not transmitted, and the actual downlink delay is not generated, the downlink delay is updated according to the estimation parameter α, which is a constant selected in the interval (0, 1).
For example, by T0' represents the updated downlink delay, and the updated downlink delay can be calculated by the following equation0’＝α×T0。
The embodiment of the invention judges whether to transmit the retransmission packet or not based on the retransmission time length and the retransmission time length, and transmits the retransmission packet only when the retransmission time length is less than the retransmission time length, so that the uploading of invalid retransmission packets can be avoided, and further the waste of computing resources caused by the uploading of the invalid retransmission packets is avoided.
Fig. 1 illustrates an invalid retransmission packet reduction method, and the following describes an apparatus provided by an embodiment of the present invention with reference to fig. 2 and fig. 3.
Fig. 2 is a schematic structural diagram illustrating an apparatus for reducing invalid retransmission packets according to an embodiment of the present invention. As shown in fig. 2, the apparatus may include:
and the calculating module 210 is configured to calculate a retransmission time length according to the player parameter configured by the client.
Because the player configured by the client directly plays the video, the accuracy of the retransmission time length can be ensured by calculating the retransmission time length based on the parameters of the player.
The determining module 220 is configured to determine the downlink time delay according to the time delay of the client receiving the network packet from the server within the preset time period.
The downlink delay refers to a time delay from the server to the client network packet, and since the retransmission packet is not yet transmitted at this time, a downlink delay, that is, a downlink delay needs to be estimated according to a historical delay of receiving the network packet.
The obtaining module 230 is configured to obtain, from the server, the uplink delay of the network packet sent by the client.
The uplink time delay refers to the time delay from the client to the service retransmission request, and the uplink time delay exists in the application scene based on the embodiment of the invention, namely the retransmission request is sent, so that the uplink time delay of the network packet sent by the client can be directly received from the server.
The calculating module 210 is further configured to calculate a retransmission time according to the downlink time delay and the uplink time delay, where the retransmission time is equal to a sum of the downlink time delay and the uplink time delay.
And calculating retransmission consumed time based on the downlink time delay and the uplink time delay, and considering all consumed time required by the transmission of the retransmission packet, ensuring the accuracy of the calculated retransmission consumed time.
A sending module 240, configured to send the retransmission packet when the retransmission time consumption is less than the retransmission time length.
The retransmission packet is sent only when the retransmission time consumption is less than the retransmission time, so that the sending of invalid retransmission packets is avoided.
The embodiment of the invention judges whether to transmit the retransmission packet or not based on the retransmission time length and the estimated retransmission time length, and transmits the retransmission packet only when the retransmission time length is less than the retransmission time length, so that the uploading of invalid retransmission packets can be avoided, and further the waste of computing resources caused by the uploading of the invalid retransmission packets is avoided.
Fig. 3 is a schematic structural diagram illustrating an invalid retransmission packet reduction apparatus according to an embodiment of the present invention. As shown in fig. 3, the apparatus may include a processor 301 and a memory 302 storing computer program instructions.
Specifically, the processor 301 may include a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement the embodiments of the present invention.
In one example, the Memory 302 may be a Read Only Memory (ROM). In one example, the ROM may be mask programmed ROM, programmable ROM (prom), erasable prom (eprom), electrically erasable prom (eeprom), electrically rewritable ROM (earom), or flash memory, or a combination of two or more of these.
The processor 301 reads and executes the computer program instructions stored in the memory 302 to implement the methods/steps S110 to S150 in the embodiment shown in fig. 1, and achieve the corresponding technical effects achieved by the embodiment shown in fig. 1 executing the methods/steps thereof, which are not described herein again for brevity.
In one example, the invalid retransmission packet reduction device may further include a communication interface 303 and a bus 310. The processor 301, the memory 302, and the communication interface 303 are connected via a bus 310 to complete communication therebetween.
The communication interface 303 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiment of the present invention.
The invalid retransmission packet reduction device may execute the invalid retransmission packet reduction method in the embodiment of the present invention, thereby implementing the online data traffic charging method and apparatus described in conjunction with fig. 1 and fig. 2.
In addition, in combination with the invalid retransmission packet reduction method in the foregoing embodiment, an embodiment of the present invention may provide a computer storage medium to implement. The computer storage medium having computer program instructions stored thereon; the computer program instructions, when executed by a processor, implement any of the invalid retransmission packet reduction methods in the above embodiments.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic Circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Aspects of the present disclosure are described above with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware for performing the specified functions or acts, or combinations of special purpose hardware and computer instructions.
As described above, only the specific embodiments of the present invention are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (12)
1. A method for invalid retransmission packet reduction, comprising:
calculating retransmission time length according to player parameters configured by a client;
determining downlink time delay according to the time delay of the client receiving the network packet from the server within a preset time period;
acquiring uplink time delay of a network packet sent by the client and received by the server from the server;
calculating retransmission time consumption according to the downlink time delay and the uplink time delay, wherein the retransmission time consumption is equal to the sum of the downlink time delay and the uplink time delay;
and when the retransmission time consumption is less than the retransmission time length, transmitting a retransmission packet.
2. The method of claim 1, wherein the calculating the retransmission duration according to the client configured player parameters comprises:
and calculating the retransmission time length according to the player cache capacity and the average code rate of the film source, wherein the retransmission time length is equal to the player cache capacity divided by the comment code rate of the film source.
3. The method for reducing invalid retransmitted packets according to claim 1, wherein the determining the downlink delay according to the delay of the client receiving the network packet from the server within the preset time period comprises:
calculating the downlink time delay according to the time delay and the corresponding weight of each network packet in the network packets received from the server within the preset time period; alternatively, the first and second electrodes may be,
and determining the time delay average value of the network packet received from the server in the preset time period as the downlink time delay.
4. The method of invalid retransmission packet reduction according to claim 1, wherein the method further comprises:
and when the retransmission time consumption is larger than the retransmission time length, updating the downlink time delay according to the estimated value parameters.
5. The method of reducing invalid retransmitted packets of claim 1, wherein after the retransmission packet is transmitted, the method further comprises:
and updating the downlink time delay according to the actual downlink time delay of the retransmission packet.
6. An apparatus for invalid retransmission packet reduction, comprising:
the computing module is used for computing retransmission time according to the player parameters configured by the client;
the determining module is used for determining downlink time delay according to the time delay of the client receiving the network packet from the server within a preset time period;
an obtaining module, configured to obtain, from the server, an uplink delay of a network packet that the server receives from the client;
the calculation module is further configured to calculate a retransmission consumed time according to the downlink time delay and the uplink time delay, where the retransmission consumed time is equal to a sum of the downlink time delay and the uplink time delay;
and the sending module is used for sending the retransmission packet when the retransmission time consumption is less than the retransmission time length.
7. The apparatus of claim 6, wherein the computing module is specifically configured to:
and calculating the retransmission time length according to the player cache capacity and the average code rate of the film source, wherein the retransmission time length is equal to the player cache capacity divided by the comment code rate of the film source.
8. The apparatus of claim 6, wherein the determining module is specifically configured to:
calculating the downlink time delay according to the time delay and the corresponding weight of each network packet in the network packets received from the server within the preset time period; alternatively, the first and second electrodes may be,
and determining the time delay average value of the network packet received from the server in the preset time period as the downlink time delay.
9. The invalid retransmission packet reduction apparatus according to claim 6, wherein said apparatus further comprises:
and the updating module is used for updating the downlink time delay according to the estimation parameter when the retransmission time consumption is larger than the retransmission time delay.
10. The apparatus for reducing invalid retransmitted packets of claim 6 wherein after the retransmission packet is transmitted, the apparatus further comprises:
and the updating module is used for updating the downlink time delay according to the actual downlink time delay of the retransmission packet.
11. An invalid retransmitted packet reduction apparatus, comprising: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor implements the invalid retransmission packet reduction method according to any of claims 1 to 5.
12. A computer-readable storage medium, having stored thereon a program for implementing information transfer, which when executed by a processor implements the invalid retransmission packet reduction method according to any one of claims 1 to 5.
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