WO2019100475A1 - 一种数据传输方法、装置、设备及存储介质 - Google Patents

一种数据传输方法、装置、设备及存储介质 Download PDF

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Publication number
WO2019100475A1
WO2019100475A1 PCT/CN2017/116784 CN2017116784W WO2019100475A1 WO 2019100475 A1 WO2019100475 A1 WO 2019100475A1 CN 2017116784 W CN2017116784 W CN 2017116784W WO 2019100475 A1 WO2019100475 A1 WO 2019100475A1
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Prior art keywords
data
audio data
receiving device
packet loss
loss rate
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PCT/CN2017/116784
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English (en)
French (fr)
Inventor
李春
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广州视源电子科技股份有限公司
广州视睿电子科技有限公司
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Publication of WO2019100475A1 publication Critical patent/WO2019100475A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0823—Errors, e.g. transmission errors
    • H04L43/0829—Packet loss
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0852—Delays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/16—Threshold monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/28—Flow control; Congestion control in relation to timing considerations
    • H04L47/283—Flow control; Congestion control in relation to timing considerations in response to processing delays, e.g. caused by jitter or round trip time [RTT]
    • 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]

Definitions

  • the present invention relates to a smart terminal technology, and in particular, to a data transmission method, apparatus, device, and storage medium.
  • Ensuring voice quality in remote conferencing is a necessary means of improving the remote conferencing experience.
  • improving voice quality mainly starts with voice processing, such as AEC (Acoustic Echo Canceller), AGC (Automatic Gain Control), and ANS (Automatic Noise Suppression).
  • voice processing such as AEC (Acoustic Echo Canceller), AGC (Automatic Gain Control), and ANS (Automatic Noise Suppression).
  • AEC Acoustic Echo Canceller
  • AGC Automatic Gain Control
  • ANS Automatic Noise Suppression
  • the disadvantage of the above solution is that if the voice data packet is lost during the transmission process and the network transmission RTT is large, the voice delay is inevitably large, the quality is poor, and the user experience is reduced.
  • Embodiments of the present invention provide a data transmission method, apparatus, device, and storage medium, which can improve the quality of voice communication.
  • an embodiment of the present invention provides a data transmission method, including:
  • the current packet loss rate of the statistical audio data sent to the data receiving device If the round-trip delay is greater than the first threshold, the current packet loss rate of the statistical audio data sent to the data receiving device;
  • the method further includes:
  • Obtaining audio data sent by the data sending device where the audio data includes: a data sequence number;
  • the current packet loss rate is a packet loss rate of the audio data sent from the data sending device to the data receiving device in the preset time period before the current time.
  • the data sending device is at least one, and the data receiving device is at least one.
  • an embodiment of the present invention further provides a data transmission apparatus, where the apparatus includes:
  • a round-trip delay detection module configured to detect a round-trip delay of sending audio data to the data receiving device
  • a statistics module configured to: if the round-trip delay is greater than the first threshold, the current packet loss rate sent by the statistical audio data to the data receiving device;
  • a sending module configured to send two copies of the audio data to the data receiving device if the current packet loss rate is greater than a second threshold.
  • An acquiring module configured to acquire audio data sent by the data sending device, where the audio data includes: a data sequence number;
  • a data discarding module configured to discard one of the audio data if the data sequence number is repeated.
  • the current packet loss rate is a packet loss rate of the audio data sent from the data sending device to the data receiving device in the preset time period before the current time.
  • the data sending device is at least one, and the data receiving device is at least one.
  • an embodiment of the present invention further provides a computer device, including a memory, a processor, and a computer program stored on the memory and operable on the processor, where the processor implements the program, such as the present invention
  • a computer device including a memory, a processor, and a computer program stored on the memory and operable on the processor, where the processor implements the program, such as the present invention
  • the embodiment of the present invention further provides a computer readable storage medium, where the computer program is stored, and when the program is executed by the processor, the data transmission method according to any one of the embodiments of the present invention is implemented.
  • the embodiment of the present invention detects the round-trip delay of the audio data sent to the data receiving device; if the round-trip delay is greater than the first threshold, the current audio packet data is sent to the current packet loss rate of the data receiving device; If the packet rate is greater than the second threshold, two copies of the audio data are sent to the data receiving device, which can improve the quality of the voice communication.
  • Embodiment 1 is a flowchart of a data transmission method in Embodiment 1 of the present invention.
  • FIG. 2A is a flowchart of a data transmission method in Embodiment 2 of the present invention.
  • FIG. 2B is a schematic structural diagram of a sound mixing server in Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural diagram of a data transmission apparatus according to Embodiment 3 of the present invention.
  • Embodiment 4 is a schematic structural diagram of a computer device in Embodiment 4 of the present invention.
  • Embodiment 1 is a flowchart of a data transmission method according to Embodiment 1 of the present invention.
  • the present embodiment is applicable to a data transmission.
  • the method may be implemented by a data transmission apparatus in an embodiment of the present invention.
  • the audio data may be audio data transmitted by the client to the mixing server, or may be audio data transmitted to the mixing server by the client after the mixing server is mixed.
  • the data receiving device is a device that receives audio data, and may be, for example, a mixing server or at least one client.
  • the round-trip delay is an important performance indicator in the computer network, which means that the data is sent from the sender, and the sender receives the acknowledgement from the receiver (the receiver receives the data immediately after receiving the acknowledgement). Delay.
  • the round-trip delay is determined by three parts: the propagation time of the link, the processing time of the end system, and the queuing and processing time in the router's cache.
  • the value of the first two parts is relatively fixed as a TCP connection, and the queuing and processing time in the router's cache will change with the degree of congestion of the entire network. Therefore, the change of round-trip delay reflects the change of network congestion degree to some extent.
  • detecting a delay from the time when the data transmitting device transmits the audio data to the data transmitting device receiving the confirmation from the data receiving device For example, if the data transmitting device is a client and the data receiving device is a mixing server, detecting a delay from the time the client sends the audio data to the time when the client receives the confirmation from the mixing server. If the data transmitting device is a mixing suit The data receiving device is a client, and detects the delay from the time the audio data is sent from the mixing server to the time when the mixing server receives the confirmation from the client.
  • the statistical audio data is sent to the current packet loss rate of the data receiving device.
  • the first threshold is an empirical value obtained according to experience. Specifically, if the round-trip delay is less than or equal to the first threshold, the current network is smooth, and the data sending device can normally send audio data, if the round-trip delay is greater than The first threshold indicates the current network congestion.
  • the packet loss rate refers to the ratio of the number of lost packets in the test to the transmitted data group.
  • the packet loss rate is related to the packet length and the packet transmission frequency.
  • the current packet loss rate is a packet loss rate of the audio data sent from the data sending device to the data receiving device in the preset time period before the current time.
  • the preset time period may be a time period set by the user, or may be an empirical value obtained according to multiple measurements, which is not limited by the embodiment of the present invention.
  • the round-trip delay is greater than the first threshold
  • the current network congestion is performed, and the current packet loss rate of the audio data is sent to the data receiving device.
  • the data sending device is a client
  • the data receiving device is The mixing server starts from the time when the client sends the audio data, and the delay that the client receives the confirmation from the mixing server is greater than 50 ms, and then the audio data is sent from the data sending device to the preset time period before the current time.
  • the packet loss rate of the data receiving device is the packet loss rate of the data receiving device.
  • the two pieces of the audio data are two-part audio data with the same content, that is, the data sequence numbers of the two-part audio data are the same.
  • the second threshold is an empirical value obtained according to experience. Specifically, if the current packet loss rate is less than or equal to the second threshold, the ratio of the lost audio data to the transmitted audio data is small, and the data sending device is The audio data can be sent normally. If the current packet loss rate is greater than the second threshold, it indicates that the ratio of the amount of lost audio data to the transmitted audio data is large, and two pieces of audio data are sent to the data receiving device.
  • the data sending device is at least one, and the data receiving device is at least one.
  • the data transmitting device is the client 1 and the client 2
  • the data receiving device is a mixing server
  • the delay A experienced in total is confirmed, and the delay B from the start of the transmission of the audio data by the client 2 to the confirmation of the confirmation from the mixing server by the client 2 is performed.
  • A is smaller than the first threshold
  • the client 1 normally sends the audio data.
  • the B is greater than the first threshold
  • the statistics client 2 sends the audio data to the current packet loss rate C of the mixing server. When C is greater than the second threshold, Then the client 2 sends two copies of the audio data to the mixing server.
  • the data transmitting device is a mixing server
  • the data receiving device is the client 1 and the client 2
  • detecting that the audio data is sent from the mixing server, and the sound receiving server receives the client 1 The delay Q experienced in total is confirmed, and the delay W from the start of the transmission of the audio data from the mixing server to the confirmation of the confirmation by the mixing server from the client 2 is made.
  • the mixing server sends the audio data to the client 1 normally.
  • the W is greater than the first threshold
  • the statistical mixing server sends the audio data to the current packet loss rate C of the client 2, when C is greater than The second threshold, the mixing server sends two copies of the audio data to the client 2.
  • the technical solution of this embodiment detects the round-trip delay of the audio data sent to the data receiving device; if the round-trip delay is greater than the first threshold, the statistical audio data is sent to the current data receiving device.
  • the packet loss rate; if the current packet loss rate is greater than the second threshold, sending the two pieces of the audio data to the data receiving device can improve the quality of the voice communication.
  • Embodiment 2A is a flowchart of a data transmission method according to Embodiment 2 of the present invention.
  • the present embodiment is optimized based on the foregoing Embodiment 1.
  • the method further includes: acquiring audio data sent by the data sending device, where the audio data includes: a data sequence number; if the data sequence number is repeated, discarding One of the audio data.
  • the method in this embodiment specifically includes the following steps:
  • the current audio packet data is sent to the current packet loss rate of the data receiving device.
  • the second threshold may be 5% or 3%.
  • the data serial number is the number of each audio data. If the audio data is the same, the data serial number of the audio data is the same.
  • the data serial number is repeated as audio data with two data sequence numbers being the same.
  • the data transmitting device since the data transmitting device sends two audio data, the data receiving device may receive Receive two copies of the same audio data. Since the audio data is the same, you can discard one of them and keep one copy.
  • Step 1 The client starts, and the client detects the RTT from the client to the mixing server (Round- Trip Time, round-trip delay), if the RTT is less than a certain threshold ⁇ , the client sends audio data normally;
  • Step 2 If the RTT is greater than a certain threshold ⁇ , the client collects the current packet loss rate, and if the packet loss rate is greater than a certain threshold ⁇ , the client sends two copies for each audio data.
  • Step 3 The sound mixing server receives the audio data sent by the client, and discards one of the data if the data serial number is repeated.
  • Step 4 The mixing server performs a mixing algorithm processing on the received client audio data;
  • Step 5 The mixing server detects the RTT from the mixing server to the client. If the RTT is less than a certain threshold ⁇ , the mixing server normally sends the mixed After the tone data;
  • Step 6 If the RTT is greater than a certain threshold ⁇ , the mixing server collects the packet loss rate of the current client. If the packet loss rate is greater than a certain threshold ⁇ , the mixing server sends the mixed data to the packet.
  • Client Step 7: The client and the mixing server perform the above steps at certain intervals.
  • the technical solution of this embodiment is dynamically adjusted for each client, that is, whether each client sends redundant data is different.
  • the technical solution of the embodiment is to detect the round-trip delay of the audio data sent to the data receiving device; if the round-trip delay is greater than the first threshold, the current packet loss rate of the statistical audio data sent to the data receiving device; If the current packet loss rate is greater than the second threshold, sending the two pieces of the audio data to the data receiving device can improve the quality of the voice communication.
  • FIG. 3 is a schematic structural diagram of a data transmission apparatus according to Embodiment 3 of the present invention. This embodiment can be applied to the case of data transmission.
  • the device can be implemented in software and/or hardware.
  • the device can be integrated in any device that provides a data transmission function. As shown in FIG. 3, the data transmission device is specifically The method includes a round trip delay detection module 310, a statistics module 320, and a sending module 330.
  • the round-trip delay detection module 310 is configured to detect a round-trip delay of sending audio data to the data receiving device.
  • the statistics module 320 is configured to: if the round-trip delay is greater than the first threshold, the current packet loss rate of the statistical audio data sent to the data receiving device;
  • the sending module 330 is configured to send two copies of the audio data to the data receiving device if the current packet loss rate is greater than a second threshold.
  • it also includes:
  • An acquiring module configured to acquire audio data sent by the data sending device, where the audio data includes: a data sequence number;
  • a data discarding module configured to discard one of the audio data if the data sequence number is repeated.
  • the current packet loss rate is a packet loss rate of the audio data sent from the data sending device to the data receiving device in the preset time period before the current time.
  • the data sending device is at least one, and the data receiving device is at least one.
  • the technical solution of the embodiment is to detect the round-trip delay of the audio data sent to the data receiving device; if the round-trip delay is greater than the first threshold, the current packet loss rate of the statistical audio data sent to the data receiving device; If the current packet loss rate is greater than the second threshold, sending the two pieces of the audio data to the data receiving device can improve the quality of the voice communication.
  • FIG. 4 is a schematic structural diagram of a computer device according to Embodiment 4 of the present invention.
  • FIG. 4 illustrates a block diagram of an exemplary computer device 12 suitable for use in implementing embodiments of the present invention.
  • the computer device 12 shown in FIG. 4 is merely an example and should not impose any limitation on the function and scope of use of the embodiments of the present invention.
  • computer device 12 is embodied in the form of a general purpose computing device.
  • Components of computer device 12 may include, but are not limited to, one or more processors or processing units 16, system memory 28, and bus 18 that connects different system components, including system memory 28 and processing unit 16.
  • Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of a variety of bus structures.
  • these architectures include, but are not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MAC) bus, an Enhanced ISA Bus, a Video Electronics Standards Association (VESA) local bus, and peripheral component interconnects ( PCI) bus.
  • ISA Industry Standard Architecture
  • MAC Micro Channel Architecture
  • VESA Video Electronics Standards Association
  • PCI peripheral component interconnects
  • Computer device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by computer device 12, including both volatile and nonvolatile media, removable and non-removable media.
  • System memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and/or cache memory 32.
  • Computer device 12 may further include other removable/non-removable, volatile/non-volatile computer system storage media.
  • storage system 34 may be used to read and write non-removable, non-volatile magnetic media (not shown in Figure 4, commonly referred to as a "hard disk drive”).
  • a hard disk drive commonly referred to as a "hard disk drive”
  • it can be provided for removable non-volatile A disk drive that reads and writes to a disk (such as a "floppy disk"), and an optical disk drive that reads and writes to a removable non-volatile disk such as a CD-ROM, DVD-ROM, or other optical medium.
  • each drive can be coupled to bus 18 via one or more data medium interfaces.
  • Memory 28 can include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of various
  • a program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more applications, other programs Modules and program data, each of these examples or some combination may include an implementation of a network environment.
  • Program module 42 typically performs the functions and/or methods of the described embodiments of the present invention.
  • Computer device 12 may also be in communication with one or more external devices 14 (eg, a keyboard, pointing device, display 24, etc.), and may also be in communication with one or more devices that enable a user to interact with the computer device 12, and/or Any device (eg, a network card, modem, etc.) that enables the computer device 12 to communicate with one or more other computing devices. This communication can take place via an input/output (I/O) interface 22.
  • the display 24 does not exist as an independent individual, but is embedded in the mirror surface. When the display surface of the display 24 is not displayed, the display surface of the display 24 and the mirror surface are visually integrated.
  • computer device 12 can communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and/or a public network, such as the Internet) via network adapter 20.
  • network adapter 20 communicates with other modules of computer device 12 via bus 18.
  • bus 18 It should be understood that although not shown in the figures, other hardware and/or software modules may be utilized in conjunction with computer device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives. Data backup storage system And so on.
  • the processing unit 16 performs various data applications and data processing by running a program stored in the system memory 28, for example, implementing a data transmission method provided by an embodiment of the present invention: detecting a round-trip delay of transmitting audio data to the data receiving device; If the round-trip delay is greater than the first threshold, the statistical audio data is sent to the current packet loss rate of the data receiving device; if the current packet loss rate is greater than the second threshold, two copies are sent to the data receiving device. Describe the audio data.
  • a fifth embodiment of the present invention provides a computer readable storage medium having stored thereon a computer program, which is executed by a processor to implement a data transmission method according to all embodiments of the present invention: detecting audio data transmission to data reception a round-trip delay of the device; if the round-trip delay is greater than the first threshold, the statistical audio data is sent to the current packet loss rate of the data receiving device; if the current packet loss rate is greater than the second threshold, the data is sent to the data The receiving device transmits two copies of the audio data.
  • the computer readable medium can be a computer readable signal medium or a computer readable storage medium.
  • the computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples (non-exhaustive lists) of computer readable storage media include: electrical connections having one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read only memory (ROM), Erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disk read only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the foregoing.
  • a computer readable storage medium can be any tangible medium that can contain or store a program, which can be executed by an instruction execution system, apparatus or device. Used with or in combination with it.
  • a computer readable signal medium may include a data signal that is propagated in the baseband or as part of a carrier, carrying computer readable program code. Such propagated data signals can take a variety of forms including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • the computer readable signal medium can also be any computer readable medium other than a computer readable storage medium, which can transmit, propagate, or transport a program for use by or in connection with the instruction execution system, apparatus, or device. .
  • Program code embodied on a computer readable medium can be transmitted by any suitable medium, including but not limited to wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
  • Computer program code for performing the operations of the present invention may be written in one or more programming languages, or a combination thereof, including an object oriented programming language - such as Java, Smalltalk, C++, and also conventional. Procedural programming language - such as the "C" language or a similar programming language.
  • the program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer, partly on the remote computer, or entirely on the remote computer or server.
  • the remote computer can be connected to the user's computer via any kind of network, including a local area network (LAN) or wide area network (WAN), or can be connected to an external computer (eg, using an Internet service provider) Internet connection).
  • LAN local area network
  • WAN wide area network
  • Internet service provider Internet service provider

Abstract

本发明公开了一种数据传输方法、装置、设备及存储介质。该方法包括：检测音频数据发送至数据接收设备的往返时延；若所述往返时延大于第一阈值，统计音频数据发送至所述数据接收设备的当前丢包率；若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据，通过本发明的技术方案，能够提升语音通信的质量。

Description

一种数据传输方法、装置、设备及存储介质 技术领域
本发明涉及一种智能终端技术，尤其涉及一种数据传输方法、装置、设备及存储介质。
背景技术
保证远程会议中语音质量是提高远程会议体验的必要手段。目前市面上远程会议方案中，提高语音质量主要在语音处理方面入手，例如AEC(Acoustic Echo Canceller，回声消除)、AGC(Automatic Gain Control，自动增益控制)、ANS(Automatic Noise Suppression，噪声抑制)。在网络传输方面，目前普遍采用的是RTP/RTCP方案。
以上方案的缺点是，语音数据包如果在传输过程中丢失，同时网络传输RTT较大，必然会导致语音延时较大，质量较差，降低用户体验。
发明内容
本发明实施例提供一种数据传输方法、装置、设备及存储介质，能够提升语音通信的质量。
第一方面，本发明实施例提供了一种数据传输方法，包括：
检测音频数据发送至数据接收设备的往返时延；
若所述往返时延大于第一阈值，统计音频数据发送至所述数据接收设备的当前丢包率；
若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据。
进一步的，若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据之后，还包括：
获取数据发送设备发送的音频数据，其中，所述音频数据包括：数据序列号；
若所述数据序列号重复，则丢弃其中一份音频数据。
进一步的，所述当前丢包率为当前时刻之前的预设时间段内音频数据从数据发送设备发送至数据接收设备的丢包率。
进一步的，所述数据发送设备至少为一个，所述数据接收设备至少为一个。
第二方面，本发明实施例还提供了一种数据传输装置，该装置包括：
往返时延检测模块，用于检测音频数据发送至数据接收设备的往返时延；
统计模块，用于若所述往返时延大于第一阈值，统计音频数据发送至所述数据接收设备的当前丢包率；
发送模块，用于若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据。
进一步的，还包括：
获取模块，用于获取数据发送设备发送的音频数据，其中，所述音频数据包括：数据序列号；
数据丢弃模块，用于若所述数据序列号重复，则丢弃其中一份音频数据。
进一步的，所述当前丢包率为当前时刻之前的预设时间段内音频数据从数据发送设备发送至数据接收设备的丢包率。
进一步的，所述数据发送设备至少为一个，所述数据接收设备至少为一个。
第三方面，本发明实施例还提供了一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现如本发明实施例中任一所述的数据传输方法。
第四方面，本发明实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现如本发明实施例中任一所述的数据传输方法。
本发明实施例通过检测音频数据发送至数据接收设备的往返时延；若所述往返时延大于第一阈值，统计音频数据发送至所述数据接收设备的当前丢包率；若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据，能够提升语音通信的质量。
附图说明
图1是本发明实施例一中的一种数据传输方法的流程图；
图2A是本发明实施例二中的一种数据传输方法的流程图；
图2B是本发明实施例二中的混音服务器结构示意图；
图3是本发明实施例三中的一种数据传输装置的结构示意图；
图4是本发明实施例四中的一种计算机设备的结构示意图。
具体实施方式
下面结合附图和实施例对本发明作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本发明，而非对本发明的限定。另外还需 要说明的是，为了便于描述，附图中仅示出了与本发明相关的部分而非全部结构。
实施例一
图1为本发明实施例一中的一种数据传输方法的流程图，本实施例可适用于数据传输的情况，该方法可以由本发明实施例中的数据传输装置来执行，该装置可采用软件和/或硬件的方式实现，如图1所示，该方法具体包括如下步骤：
S110，检测音频数据发送至数据接收设备的往返时延。
其中，所述音频数据可以为客户端传输至混音服务器的音频数据，也可以为经过混音服务器混合后的客户端传输至混音服务器的音频数据。
其中，数据接收设备为接收音频数据的设备，例如可以是，混音服务器或者至少一个客户端。
其中，往返时延在计算机网络中是一个重要的性能指标，表示从发送端发送数据开始，到发送端收到来自接收端的确认(接收端收到数据后便立即发送确认)，总共经历的时延。往返延时由三个部分决定：即链路的传播时间、末端系统的处理时间以及路由器的缓存中的排队和处理时间。其中，前面两个部分的值作为一个TCP连接相对固定，路由器的缓存中的排队和处理时间会随着整个网络拥塞程度的变化而变化。所以往返时延的变化在一定程度上反映了网络拥塞程度的变化。
具体的，检测从数据发送设备发送音频数据开始，到数据发送设备接收到来自数据接收设备的确认总共经历的时延。例如可以是，若数据发送设备为客户端，数据接收设备为混音服务器，则检测从客户端发送音频数据开始，到客户端接收到来自混音服务器的确认总共经历的时延。若数据发送设备为混音服 务器，数据接收设备为客户端，则检测从混音服务器发送音频数据开始，到混音服务器接收到来自客户端的确认总共经历的时延。
S120，若所述往返时延大于第一阈值，统计音频数据发送至所述数据接收设备的当前丢包率。
其中，第一阈值为根据经验获得的经验值，具体的，若所述往返时延小于或者等于第一阈值，说明当前网络顺畅，数据发送设备可以正常发送音频数据，若所述往返时延大于第一阈值，则说明当前网络拥塞。
其中，丢包率是指测试中所丢失数据包数量占所发送数据组的比率，丢包率与数据包长度以及包发送频率相关。
可选的，所述当前丢包率为当前时刻之前的预设时间段内音频数据从数据发送设备发送至数据接收设备的丢包率。
其中，所述预设时间段可以为用户设定的时间段，也可以为根据多次测量获得的经验值，本发明实施例对此不进行限制。
具体的，若所述往返时延大于第一阈值，则说明当前网络拥堵，统计音频数据发送至数据接收设备的当前丢包率，例如可以是，若数据发送设备为客户端，数据接收设备为混音服务器，从客户端发送音频数据开始，到客户端接收到来自混音服务器的确认总共经历的时延大于50ms，则统计当前时刻之前的预设时间段内音频数据从数据发送设备发送至数据接收设备的丢包率。
S130，若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据。
其中，两份所述音频数据为内容完全相同的两分音频数据，即，两分音频数据的数据序列号相同。
其中，所述第二阈值为根据经验获得的经验值，具体的，若所述当前丢包率小于或者等于第二阈值，说明丢失音频数据数量占所发送音频数据的比率较小，数据发送设备可以正常发送音频数据，若当前丢包率大于第二阈值，则说明丢失音频数据数量占所发送音频数据的比率较大，则向数据接收设备发送两份音频数据。
可选的，所述数据发送设备至少为一个，所述数据接收设备至少为一个。
在一个具体的例子中，若数据发送设备为客户端1和客户端2，数据接收设备为混音服务器，则检测从客户端1发送音频数据开始，到客户端1接收到来自混音服务器的确认总共经历的时延A，以及从客户端2发送音频数据开始，到客户端2接收到来自混音服务器的确认总共经历的时延B。若A小于第一阈值，则客户端1正常发送音频数据，若B大于第一阈值，则统计客户端2将音频数据发送至混音服务器的当前丢包率C，当C大于第二阈值，则客户端2向混音服务器发送两份所述音频数据。
在另一个具体的例子中，若数据发送设备为混音服务器，数据接收设备为客户端1和客户端2，则检测从混音服务器发送音频数据开始，到混音服务器接收到来自客户端1的确认总共经历的时延Q，以及从混音服务器发送音频数据开始，到混音服务器接收到来自客户端2的确认总共经历的时延W。若Q小于第一阈值，则混音服务器正常向客户端1发送音频数据，若W大于第一阈值，则统计混音服务器将音频数据发送至客户端2的当前丢包率C，当C大于第二阈值，则混音服务器向客户端2发送两份所述音频数据。
本实施例的技术方案，通过检测音频数据发送至数据接收设备的往返时延；若所述往返时延大于第一阈值，统计音频数据发送至所述数据接收设备的当前 丢包率；若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据，能够提升语音通信的质量。
实施例二
图2A为本发明实施例二中的一种数据传输方法的流程图，本实施例以上述实施例一为基础进行优化，在本实施例中，若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据之后，还包括：获取数据发送设备发送的音频数据，其中，所述音频数据包括：数据序列号；若所述数据序列号重复，则丢弃其中一份音频数据。
如图2A所示，本实施例的方法具体包括如下步骤：
S210，检测音频数据发送至数据接收设备的往返时延。
S220，若往返时延大于第一阈值，统计音频数据发送至数据接收设备的当前丢包率。
S230，若当前丢包率大于第二阈值，则向数据接收设备发送两份音频数据。
可选的，所述第二阈值可以为5％或者3％。
S240，获取数据发送设备发送的音频数据，其中，音频数据包括：数据序列号。
其中，所述数据序列号为每个音频数据的编号，若音频数据相同，则音频数据的数据序列号相同。
S250，若数据序列号重复，则丢弃其中一份音频数据。
其中，数据序列号重复为有两个数据序列号相同的音频数据。
具体的，由于数据发送设备发送两个音频数据，则数据接收设备可能会接 收到两份相同的音频数据，由于音频数据是相同的，则可以舍弃其中的一份，保留一份。
具体的，若数据接收设备接收到的音频数据的数据序列号重复，则丢弃其中一份音频数据。
在一个具体的例子中，如图2B所示，在该结构基础上进行方案优化，本方案实现步骤如下：步骤一：客户端启动，客户端检测从客户端到混音服务器的RTT(Round-Trip Time，往返时延)，如果RTT小于某一阈值α，客户端正常发送音频数据；步骤二：如果RTT大于某一阈值α，客户端统计当前丢包率，如果丢包率大于某一阈值Ω，客户端针对每份音频数据发送两份。步骤三：混音服务器接收到客户端发送过来的音频数据，如果数据序列号重复，则丢弃其中一份数据。步骤四：混音服务器针对接收到的客户端音频数据进行混音算法处理；步骤五：混音服务器检测从混音服务器到客户端的RTT，如果RTT小于某一阈值α，混音服务器正常发送混音后的数据；步骤六：如果RTT大于某一阈值α，混音服务器统计当前客户端的丢包率，如果丢包率大于某一阈值Ω，混音服务器将混音后的数据发送两份给客户端。步骤七：客户端和混音服务器以一定的时间间隔执行上述步骤。本实施例的技术方案是针对每个客户端来动态调节的，也就是每个客户端是否发送冗余数据是不相同的。
本实施例的技术方案，通过检测音频数据发送至数据接收设备的往返时延；若所述往返时延大于第一阈值，统计音频数据发送至所述数据接收设备的当前丢包率；若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据，能够提升语音通信的质量。
实施例三
图3为本发明实施例三中的一种数据传输装置的结构示意图。本实施例可适用于数据传输的情况，该装置可采用软件和/或硬件的方式实现，该装置可集成在任何提供数据传输功能的设备中，如图3所示，所述数据传输装置具体包括：往返时延检测模块310、统计模块320和发送模块330。
其中，往返时延检测模块310，用于检测音频数据发送至数据接收设备的往返时延；
统计模块320，用于若所述往返时延大于第一阈值，统计音频数据发送至所述数据接收设备的当前丢包率；
发送模块330，用于若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据。
可选的，还包括：
获取模块，用于获取数据发送设备发送的音频数据，其中，所述音频数据包括：数据序列号；
数据丢弃模块，用于若所述数据序列号重复，则丢弃其中一份音频数据。
可选的，所述当前丢包率为当前时刻之前的预设时间段内音频数据从数据发送设备发送至数据接收设备的丢包率。
可选的，所述数据发送设备至少为一个，所述数据接收设备至少为一个。
本实施例的技术方案，通过检测音频数据发送至数据接收设备的往返时延；若所述往返时延大于第一阈值，统计音频数据发送至所述数据接收设备的当前丢包率；若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据，能够提升语音通信的质量。
实施例四
图4为本发明实施例四中的一种计算机设备的结构示意图。图4示出了适于用来实现本发明实施方式的示例性计算机设备12的框图。图4显示的计算机设备12仅仅是一个示例，不应对本发明实施例的功能和使用范围带来任何限制。
如图4所示，计算机设备12以通用计算设备的形式表现。计算机设备12的组件可以包括但不限于：一个或者多个处理器或者处理单元16，系统存储器28，连接不同系统组件(包括系统存储器28和处理单元16)的总线18。
总线18表示几类总线结构中的一种或多种，包括存储器总线或者存储器控制器，外围总线，图形加速端口，处理器或者使用多种总线结构中的任意总线结构的局域总线。举例来说，这些体系结构包括但不限于工业标准体系结构(ISA)总线，微通道体系结构(MAC)总线，增强型ISA总线、视频电子标准协会(VESA)局域总线以及外围组件互连(PCI)总线。
计算机设备12典型地包括多种计算机系统可读介质。这些介质可以是任何能够被计算机设备12访问的可用介质，包括易失性和非易失性介质，可移动的和不可移动的介质。
系统存储器28可以包括易失性存储器形式的计算机系统可读介质，例如随机存取存储器(RAM)30和/或高速缓存存储器32。计算机设备12可以进一步包括其它可移动/不可移动的、易失性/非易失性计算机系统存储介质。仅作为举例，存储系统34可以用于读写不可移动的、非易失性磁介质(图4未显示，通常称为“硬盘驱动器”)。尽管图4中未示出，可以提供用于对可移动非易失性 磁盘(例如“软盘”)读写的磁盘驱动器，以及对可移动非易失性光盘(例如CD-ROM，DVD-ROM或者其它光介质)读写的光盘驱动器。在这些情况下，每个驱动器可以通过一个或者多个数据介质接口与总线18相连。存储器28可以包括至少一个程序产品，该程序产品具有一组(例如至少一个)程序模块，这些程序模块被配置以执行本发明各实施例的功能。
具有一组(至少一个)程序模块42的程序/实用工具40，可以存储在例如存储器28中，这样的程序模块42包括——但不限于——操作系统、一个或者多个应用程序、其它程序模块以及程序数据，这些示例中的每一个或某种组合中可能包括网络环境的实现。程序模块42通常执行本发明所描述的实施例中的功能和/或方法。
计算机设备12也可以与一个或多个外部设备14(例如键盘、指向设备、显示器24等)通信，还可与一个或者多个使得用户能与该计算机设备12交互的设备通信，和/或与使得该计算机设备12能与一个或多个其它计算设备进行通信的任何设备(例如网卡，调制解调器等等)通信。这种通信可以通过输入/输出(I/O)接口22进行。另外，本实施例中的计算机设备12，显示器24不是作为独立个体存在，而是嵌入镜面中，在显示器24的显示面不予显示时，显示器24的显示面与镜面从视觉上融为一体。并且，计算机设备12还可以通过网络适配器20与一个或者多个网络(例如局域网(LAN)，广域网(WAN)和/或公共网络，例如因特网)通信。如图所示，网络适配器20通过总线18与计算机设备12的其它模块通信。应当明白，尽管图中未示出，可以结合计算机设备12使用其它硬件和/或软件模块，包括但不限于：微代码、设备驱动器、冗余处理单元、外部磁盘驱动阵列、RAID系统、磁带驱动器以及数据备份存储系 统等。
处理单元16通过运行存储在系统存储器28中的程序，从而执行各种功能应用以及数据处理，例如实现本发明实施例所提供的数据传输方法：检测音频数据发送至数据接收设备的往返时延；若所述往返时延大于第一阈值，统计音频数据发送至所述数据接收设备的当前丢包率；若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据。
实施例五
本发明实施例五提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现如本申请所有发明实施例提供的数据传输方法：检测音频数据发送至数据接收设备的往返时延；若所述往返时延大于第一阈值，统计音频数据发送至所述数据接收设备的当前丢包率；若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据。
可以采用一个或多个计算机可读的介质的任意组合。计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质。计算机可读存储介质例如可以是——但不限于——电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的更具体的例子(非穷举的列表)包括：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机存取存储器(RAM)、只读存储器(ROM)、可擦式可编程只读存储器(EPROM或闪存)、光纤、便携式紧凑磁盘只读存储器(CD-ROM)、光存储器件、磁存储器件、或者上述的任意合适的组合。在本文件中，计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使 用或者与其结合使用。
计算机可读的信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的程序代码。这种传播的数据信号可以采用多种形式，包括——但不限于——电磁信号、光信号或上述的任意合适的组合。计算机可读的信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。
计算机可读介质上包含的程序代码可以用任何适当的介质传输，包括——但不限于——无线、电线、光缆、RF等等，或者上述的任意合适的组合。
可以以一种或多种程序设计语言或其组合来编写用于执行本发明操作的计算机程序代码，所述程序设计语言包括面向对象的程序设计语言-诸如Java、Smalltalk、C++，还包括常规的过程式程序设计语言-诸如”C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络——包括局域网(LAN)或广域网(WAN)-连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。
注意，上述仅为本发明的较佳实施例及所运用技术原理。本领域技术人员会理解，本发明不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本发明的保护范围。因此，虽 然通过以上实施例对本发明进行了较为详细的说明，但是本发明不仅仅限于以上实施例，在不脱离本发明构思的情况下，还可以包括更多其他等效实施例，而本发明的范围由所附的权利要求范围决定。

Claims (10)

  1. 一种数据传输方法，其特征在于，包括：
    检测音频数据发送至数据接收设备的往返时延；
    若所述往返时延大于第一阈值，统计音频数据发送至所述数据接收设备的当前丢包率；
    若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据。
  2. 根据权利要求1所述的方法，其特征在于，若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据之后，还包括：
    获取数据发送设备发送的音频数据，其中，所述音频数据包括：数据序列号；
    若所述数据序列号重复，则丢弃其中一份音频数据。
  3. 根据权利要求1所述的方法，其特征在于，所述当前丢包率为当前时刻之前的预设时间段内音频数据从数据发送设备发送至数据接收设备的丢包率。
  4. 根据权利要求1所述的方法，其特征在于，所述数据发送设备至少为一个，所述数据接收设备至少为一个。
  5. 一种数据传输装置，其特征在于，包括：
    往返时延检测模块，用于检测音频数据发送至数据接收设备的往返时延；
    统计模块，用于若所述往返时延大于第一阈值，统计音频数据发送至所述数据接收设备的当前丢包率；
    发送模块，用于若所述当前丢包率大于第二阈值，则向所述数据接收设备发送两份所述音频数据。
  6. 根据权利要求5所述的装置，其特征在于，还包括：
    获取模块，用于获取数据发送设备发送的音频数据，其中，所述音频数据包括：数据序列号；
    数据丢弃模块，用于若所述数据序列号重复，则丢弃其中一份音频数据。
  7. 根据权利要求5所述的装置，其特征在于，所述当前丢包率为当前时刻之前的预设时间段内音频数据从数据发送设备发送至数据接收设备的丢包率。
  8. 根据权利要求5所述的装置，其特征在于，所述数据发送设备至少为一个，所述数据接收设备至少为一个。
  9. 一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述程序时实现如权利要求1-4中任一所述的方法。
  10. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现如权利要求1-4中任一所述的方法。
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