WO2012024970A1 - 用于多点控制单元的流量处理方法和装置 - Google Patents
用于多点控制单元的流量处理方法和装置 Download PDFInfo
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- WO2012024970A1 WO2012024970A1 PCT/CN2011/076059 CN2011076059W WO2012024970A1 WO 2012024970 A1 WO2012024970 A1 WO 2012024970A1 CN 2011076059 W CN2011076059 W CN 2011076059W WO 2012024970 A1 WO2012024970 A1 WO 2012024970A1
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- video conference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
- H04N7/152—Multipoint control units therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
- H04L12/1822—Conducting the conference, e.g. admission, detection, selection or grouping of participants, correlating users to one or more conference sessions, prioritising transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
- H04L12/1827—Network arrangements for conference optimisation or adaptation
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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
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
- H04M3/567—Multimedia conference systems
Definitions
- FIG. 1 is a schematic diagram of communication of a video conferencing system of the prior art. As shown in FIG. 1, the video conferencing system is composed of a terminal 1 and a terminal 2 connected to an MCU.
- FIG. 1 is a schematic diagram of communication of a video conferencing system of the prior art. As shown in FIG. 1, the video conferencing system is composed of a terminal 1 and a terminal 2 connected to an MCU.
- the MCU mainly includes: a plurality of modular VPUs (Video Processing Units), a plurality of modular APUs (Audio Processing Units), and an NPU (Net Process Unit). , Network Processing Unit) and an MP (Media Process, Media Resource Management Unit;).
- VPUs and the APUs of different processing capabilities are respectively connected to different networks, and the APUs and VPUs with low processing capabilities are connected to the FE network, and the VPUs with high processing capabilities are connected to the GE network.
- a primary object of the present invention is to provide a traffic processing method and apparatus for an MCU to solve network packet loss caused by network fluctuations in an existing multi-point control unit MCU, thereby affecting performance problems of the MCU system.
- a traffic processing method for an MCU includes: determining, according to a mode of a video conference and a network capability information of a pre-stored MCU internal network node, a node participating in the video conference; Ability to allocate video conferencing traffic to nodes. Before determining the node participating in the video conference according to the mode of the video conference and the network capability information of the pre-stored MCU internal network node, the method further includes: acquiring and saving network capability information of the internal network node of the MCU.
- Allocating video conference traffic to the node according to the network capability of the node includes: receiving the data packet of the video conference and storing the data packet in the buffer pair column of the node; sending the data packet to the node according to the network capability of the node.
- Sending the data packet to the node according to the network capability of the node includes: calculating, according to the network capability of the node, the amount of data that the node can process in a unit time; sending the node to the node within a predetermined time period A packet of data that can be processed.
- the network capability information of the internal network node of the MCU includes: bandwidth and IP address information of the internal network node of the MCU.
- a traffic processing apparatus for an MCU comprising: a resource management unit configured to determine a node according to a mode of a video conference and network capability information of a pre-stored MCU internal network node Traffic processing participating in the video conference; the traffic processing unit is configured to allocate video conference traffic to the node according to the network capability of the node.
- the resource management unit is also configured to acquire and save network capability information of the internal network node of the MCU.
- the traffic processing unit comprises: a data receiving module, configured to receive the data packet of the video conference and store the data packet in a buffer pair column of the node; and the data sending module is configured to send the data packet to the node according to the network capability of the node.
- the data sending module includes: a calculating submodule, configured to calculate, according to the network capability of the node, the amount of data that the node can process in a unit time; the timing submodule, configured to set the buffer queue of the slave node to send the data packet to the node.
- the time segment; the sending submodule is configured to send, to the node, a data packet that does not exceed the amount of data that can be processed in the unit time period within the time period set by the timing submodule.
- the network capability information of the MCU internal network node includes: bandwidth and IP address information of the internal network node of the MCU.
- the traffic of the node is allocated according to the network capability of the node participating in the video conference traffic processing, so that when the network fluctuates, the traffic of the node can remain unchanged, and the MCU internal network generates a smooth network effect, thereby The packet loss rate of the node is reduced, which solves the problem that the internal node of the MCU network is seriously lost due to network fluctuations, thereby achieving the effect of improving the performance of the MCU system.
- FIG. 1 is a schematic diagram showing communication of a video conference system in the prior art
- FIG. 2 is a schematic diagram showing a connection of an internal unit of a MCU in the prior art
- FIG. 3 is a diagram showing a method for processing video conference traffic according to an embodiment of the present invention
- FIG. 4 is a block diagram showing the structure of a video conference traffic processing apparatus according to an embodiment of the present invention
- FIG. 5 is a block diagram showing the structure of a video conference traffic processing apparatus according to a preferred embodiment
- FIG. 6 is a diagram showing a first embodiment of the present invention. Schematic diagram of the MCU connection. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 3 is a flowchart of a video conference traffic processing method according to an embodiment of the present invention. As shown in FIG. 3, the following steps are included: Step S302: Determine a node participating in the video conference according to the mode of the video conference and the network capability information of the pre-stored MCU internal network node.
- Step S304 the video conference traffic is allocated to the node according to the network capability of the node.
- the method further includes the step of acquiring and saving network capability information of the internal network node of the MCU.
- the above step S304 includes receiving a data packet of the video conference and storing the data packet in a buffer pair column of the node; and transmitting the data packet to the node according to the network capability of the node.
- the data packet of the received video conference includes a data packet received from the network and required to be sent to an internal network node of the MCU, and a data packet sent by the internal network node of the MCU to the external network.
- the step of sending the data packet to the node according to the network capability of the node includes: calculating, according to the network capability of the node, the amount of data that the node can process in a unit time; sending the node to the node within a predetermined time period
- the data packet of the amount of data that can be processed per unit time for example, when the network capacity of the node is 100M, the number of data packets transmitted to the node within 10 ms does not exceed 80.
- the network capability information of the internal network node of the MCU includes the bandwidth and IP address information of the internal network node of the MCU, and the acquired information may be stored in the form of a table to facilitate querying the network capability of the node.
- the video conference traffic processing apparatus includes: a resource management unit 10 and a traffic processing unit 20, where the resource management unit 10 is connected to the traffic processing unit 20, wherein the resource management unit 10 is configured to be in a mode of video conferencing and
- the network capability information of the pre-stored MCU internal network node determines the traffic processing of the node participating in the video conference; the traffic processing unit 20 is configured to allocate video conference traffic to the node according to the network capability of the node.
- the resource management unit 10 pre-acquires and saves the network capability information of the internal network node of the MCU, where the network capability information includes the IP address of the node and the bandwidth information of the node, and the acquired information may be stored in the form of a table.
- FIG. 5 is a block diagram showing the structure of a video conference traffic processing apparatus according to a preferred embodiment.
- the traffic processing unit 20 of the traffic processing apparatus includes a data receiving module 21 and a data transmitting module 22, a data receiving module 21, and data.
- the sending module 22 is connected.
- the data receiving module 21 is configured to receive a data packet of the video conference and store the data packet in a data receiving module in a buffer pair column of the node; the data sending module 22 is configured to send the data packet to the node according to the network capability of the node.
- the data packets sent by the external network to the internal network node of the MCU are stored in the buffer queue of the node, and the data packets sent by the internal network node of the MCU to the external network are stored in the buffer queue of the external network.
- the data transmitting module 22 of the traffic processing device includes a computing sub-module 221, a timing sub-module 222, and a transmitting sub-module 223.
- the calculation sub-module 221, the timing sub-module 222, and the transmission sub-module 223 are sequentially connected.
- the calculation sub-module 221 is configured to calculate the amount of data that the node can process in a unit time according to the network capability of the node;
- the timing sub-module 222 is configured to set a time period for sending the data packet from the buffer queue of the node to the node,
- the timing sub-module may be a normal timer;
- the sending sub-module 223 is configured to send, to the node, a data packet that does not exceed the amount of data that can be processed in the unit unit time within the time period set by the timing sub-module, the time period
- the settings can be set by setting the MCU internal network timer and external network timer.
- Embodiment 1 provides an MCU for traffic processing of a video conference, and an internal processing unit connection relationship of the MCU is as shown in FIG. 6.
- the MCU of the present embodiment is further described in detail below with reference to FIG. 6.
- the system module part of the MCU includes: a set of video processing units VPU1-VPU8 with different network capabilities, a set of audio processing units APU1, APU2, media processing resource management Unit MP, and network processing unit NPU.
- APU1, APU2, VPU1-VPU4 are connected to 100M Ethernet, and then connected to VPU5-VPU8, MP, NPU to access Gigabit Ethernet switch chip to form a star topology network.
- the MP is used to detect and manage internal network networking relationships and node capability information in the MCU system, and send the information to the NPU.
- the NPU establishes an internal network networking relationship table of the MCU, and establishes a sending buffer queue by using the node as the most basic unit target.
- the NPU receives the external data of the MCU, and distributes the bandwidth quantitatively into the intranet APU and the VPU according to the MCU internal network capability relationship table configured by the MP. Different functional conferences require different VPU processing capabilities and numbers.
- the resources are allocated by the MP and the NPU data flow is reported.
- the mode of the video conference is 20 terminals participating in the conference, and the multi-picture function is required, that is, each terminal needs 16 pictures, and VPU1, VPU4, and APU1 in FIG. 6 participate in data processing.
- the processing steps of the MCU internal network traffic control algorithm are as follows: Step 1.
- the MP detects the MCU system resources, including the IP address and network capability information of the VPU and the APU.
- Step 2 The IP address and network capability information of the VPU and the APU of the MP4 are sent to the NPU.
- Step 3 The NPU internally establishes a topology diagram of the internal network capability of the MCU.
- APU1 IP: 128.0.7.1, network capability 100M
- VPU1 IP: 128.0.7.3, network capability 100M
- VPU4 IP: 128.0.7.6, network capability 1000M.
- the MP acquires the conference mode, and calculates the number of VPUs and APUs that allocate sufficient resources to participate in the conference processing (such as using APU1, VPU1, and VPU4).
- Step 5 The MP sends the conference data channel flow information to be established to the NPU. 1
- Step 6 The NPU creates a channel according to the channel information, and prepares to receive the data stream sent by the MCU external network to the NPU.
- Step 7. The NPU establishes buffer queues Q1, Q2, and Q3 for the participating APU1, VPU1, and VPU4, respectively, and the NPU establishes a buffer queue Q4 for the MCU external network.
- Step 10 Accept the MCU internal network data packet, and send the data packet to the external buffer queue Q4.
- Step 4 gathers 11, returns to step 4 and gathers 9.
- Step 12 When the MCU external network timer T2 arrives, the external network buffer queue Q4 is processed, and according to the IP or network segment query table 1, the capability is 1000M, and the number of the transmitted packets is not more than 850 packet data from the Q4. , exit and reset the timer. Step 13. When the MCU intranet timer T1 arrives, the polling queues Ql, Q2, and Q3 are polled.
- Q1's APU1 capability is 100M, this time from Q1, 4 dances no more than 80 data packets;
- Q2's VPU1 capability is 100M, this time from Q2, no more than 80 data packets are introduced;
- Q3's VPU2 capability is 1000M, and this time, 4 out of Q3, no more than 850 packets.
- the impact of the MCU external network peak on the APU and VPU instantaneous processing media data capability requirements is eliminated, so that the APU and the VPU receive smooth network data at any time. . Therefore, the risk of packet loss from the NPU to the APU and the VPU is eliminated.
- the traffic of the node is allocated according to the network capability of the node participating in the video conference traffic processing, so that when the network fluctuates, the traffic of the node can remain unchanged, and the MCU internal network generates a smooth
- the network effect thus reducing the packet loss rate of the node, solves the problem that the internal node of the MCU network is seriously lost due to network fluctuations in the prior art, thereby achieving the effect of improving the performance of the MCU system.
- modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be executed by a computing device Implemented so that they can be stored in a storage device by a computing device, and in some cases, the steps shown or described can be performed in an order different from that herein, or separately
- the integrated circuit modules are implemented by making a plurality of modules or steps of them into a single integrated circuit module.
- the invention is not limited to any specific combination of hardware and software.
- the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.
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Abstract
本发明公开了一种用于MCU的流量处理方法,该方法包括:根据视频会议的模式和预存的MCU内部网络节点的网络能力信息确定参与视频会议的节点;根据节点的网络能力为节点分配视频会议流量。本发明还公开了一种用于MCU的流量处理装置,该流量处理装置包括:资源管理单元和流量处理单元。在本发明中,通过根据参与视频会议流量处理的节点的网络能力来分配节点的流量,使得当网络出现波动时,节点的流量能够保持不变,MCU内部网络产生一种平滑的网络效果,从而较少了节点的丢包率,进而达到了提高MCU系统性能的效果。
Description
用于多点控制单元的流量处理方法和装置 技术领域 本发明涉及视频会议领域, 尤其涉及一种用于 MCU ( Multipoint Control Unit, 多点控制单元) 的流量处理方法和装置。 背景技术 视频会议系统用于召开远程、 多点、 实时会议, 实现多点的视频和声音实 时的传输和交互, 其主要由终端设备和局端 MCU组成, 在一个小型的视频会 议系统中, 通常由多个终端集中连接到一个 MCU上, 组成星型拓朴结构网络。 图 1示出了现有技术的视频会议系统通信示意图, 如图 1所示, 该视频会议系 统由终端 1和终端 2连接到一个 MCU上组成。 图 2示出了现有技术的局端设备 MCU内部处理单元连接示意图。 如图 2 所示, 该 MCU主要包括: 多个模块化的 VPU ( Video Process Unit, 视频处理 单元;)、多个模块化的 APU ( Audio Process Unit,音频处理单元 ),一个 NPU(Net Process Unit, 网络处理单元)和一个 MP ( Media Process, 媒体资源管理单元;)。 在该 MCU中, 不同处理能力的 VPU和 APU分别接入不同的网络中, 低处理 能力的 APU和 VPU接入 FE网络中, 高处理能力的 VPU接入 GE网络中。 在现有的 MCU结构中, 最少存在以下问题: FE网络和 GE网络两种网络 速度的不匹配, 使得整个系统的网络处理能力必须向下兼容, 从而出现整个 MCU的性能下降, 当 MCU外部网络的网络波动传递到内部网络时, 在 MCU 内部 FE网络上就会产生极大的网络峰值,从而出现网络丢包,严重影响到 MCU 系统的性能。 发明内容 本发明的主要目的在于提供一种用于 MCU的流量处理方法和装置, 以解 决现有的多点控制单元 MCU 中由于网络波动引起的网络丢包, 从而影响到 MCU系统的性能问题。
根据本发明的一个方面, 提供了一种用于 MCU的流量处理方法, 该方法 包括: 根据视频会议的模式和预存的 MCU内部网络节点的网络能力信息确定 参与视频会议的节点; 居节点的网络能力为节点分配视频会议流量。 在根据视频会议的模式和预存的 MCU内部网络节点的网络能力信息确定 参与视频会议的节点之前, 还包括: 获取并保存 MCU内部网络节点的网络能 力信息。 根据节点的网络能力为节点分配视频会议流量包括: 接收视频会议的数据 包并将数据包存储在节点的緩冲对列中; 根据节点的网络能力将数据包发送至 节点。 根据节点的网络能力将数据包发送至节点包括: 根据节点的网络能力计算 出单位时间内该节点所能够处理的数据量; 在预定的时间段内, 向节点发送不 超过该节点单位时间内所能够处理的数据量的数据包。
MCU内部网络节点的网络能力信息包括: MCU内部网络节点的带宽和 IP 地址信息。 根据本发明的另一方面, 提供了一种用于 MCU的流量处理装置, 该流量 处理装置包括: 资源管理单元, 设置为根据视频会议的模式和预存的 MCU内 部网络节点的网络能力信息确定节点参与视频会议的流量处理; 流量处理单 元, 设置为根据节点的网络能力为节点分配视频会议流量。 资源管理单元还设置为获取并保存 MCU内部网络节点的网络能力信息。 流量处理单元包括: 数据接收模块, 设置为接收视频会议的数据包并将数 据包存储在节点的緩冲对列中; 数据发送模块, 设置为根据节点的网络能力将 数据包发送至节点。 数据发送模块包括: 计算子模块, 设置为根据节点的网络能力计算出单位 时间内该节点所能够处理的数据量; 定时子模块, 设置为设定从节点的緩冲队 列向节点发送数据包的时间段; 发送子模块, 设置为在定时子模块设定的时间 段内, 向节点发送不超过该节点单位时间内所能够处理的数据量的数据包。
MCU内部网络节点的网络能力信息包括: MCU内部网络节点的带宽和 IP 地址信息。
在本发明中, 通过根据参与视频会议流量处理的节点的网络能力来分配节 点的流量, 使得当网络出现波动时, 节点的流量能够保持不变, MCU 内部网 络产生一种平滑的网络效果, 从而较少了节点的丢包率, 解决了现有技术中, 由于网络波动使得 MCU网络内部节点丢包严重的问题,进而达到了提高 MCU 系统性能的效果。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不 当限定。 在附图中: 图 1示出了现有技术的视频会议系统通信示意图; 图 2示出了现有技术的 MCU内部单元连接示意图; 图 3示出了本发明实施例的视频会议流量处理方法流程图; 图 4示出了本发明实施例的视频会议流量处理装置结构框图; 图 5示出了一优选实施例的视频会议流量处理装置结构框图; 以及 图 6示出了本发明实施例一的 MCU连接示意图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不 冲突的情况下, 本申请中的实施例及实施例中的特征可以相互组合。 图 3示出了本发明实施例的视频会议流量处理方法流程图。 如图 3所示, 包括以下步 4聚: 步骤 S302,根据视频会议的模式和预存的 MCU内部网络节点的网络能力 信息确定参与视频会议的节点。 步骤 S304, 根据节点的网络能力为节点分配视频会议流量。 其中, 在步骤 S302之前, 还包括获取并保存 MCU内部网络节点的网络能 力信息的步骤。
上述步骤 S304 包括接收视频会议的数据包并将数据包存储在节点的緩冲 对列中; 以及根据节点的网络能力将数据包发送至节点。 其中, 所接收的视频 会议的数据包包括从网络接收的需要向 MCU内部网络节点发送的数据包, 也 包括 MCU内部网络节点向外部网络发送的数据包。 其中, 根据节点的网络能力将数据包发送至节点的步骤包括: 根据节点的 网络能力计算出单位时间内该节点所能够处理的数据量; 在预定的时间段内, 向节点发送不超过该节点单位时间内所能够处理的数据量的数据包, 例如, 当 节点的网络能力为 100M时, 则在 10ms内向节点发送的数据包不超过 80个。 在上述步骤中, MCU内部网络节点的网络能力信息包括 MCU内部网络节 点的带宽和 IP地址信息,可以将所获取的信息以表的形式存储, 以方便对节点 的网络能力的查询。 图 4示出了本发明实施例的视频会议流量处理装置结构框图。如图 4所示, 该视频会议流量处理装置包括: 资源管理单元 10和流量处理单元 20, 资源管 理单元 10与流量处理单元 20相连接, 其中, 资源管理单元 10设置为 居视 频会议的模式和预存的 MCU内部网络节点的网络能力信息确定节点参与视频 会议的流量处理; 流量处理单元 20设置为根据节点的网络能力为节点分配视 频会议流量。 在上述的装置中,资源管理单元 10预先获取并保存 MCU内部网络节点的 网络能力信息, 该网络能力信息包括节点的 IP地址以及节点的带宽信息,可以 将所获取的信息以表的形式存储, 以方便对节点的网络能力的查询。 图 5示出了一个优选实施例的视频会议流量处理装置结构框图, 如图 5所 示: 该流量处理装置的流量处理单元 20包括数据接收模块 21和数据发送模块 22 , 数据接收模块 21和数据发送模块 22连接。 其中, 数据接收模块 21设置 为接收视频会议的数据包并将数据包存储在节点的緩冲对列中的数据接收模 块; 数据发送模块 22设置为根据节点的网络能力将数据包发送至节点的数据 发送模块。 外部网络向 MCU的内部网络节点所发送的数据包存储在节点的緩 冲队列中, MCU 的内部网络节点向外部网络所发送的数据包存储在外部网络 的緩冲队列中。
该流量处理装置的数据发送模块 22包括计算子模块 221、 定时子模块 222 和发送子模块 223。 计算子模块 221、 定时子模块 222和发送子模块 223依次 连接。 其中, 计算子模块 221设置为根据节点的网络能力计算出单位时间内该 节点所能够处理的数据量; 定时子模块 222设置为设定从节点的緩冲队列向节 点发送数据包的时间段, 定时子模块可以是普通的定时器; 发送子模块 223设 置为在定时子模块设定的时间段内, 向节点发送不超过该节点单位时间内所能 够处理的数据量的数据包, 时间段的设定可以通过设定 MCU内部网络定时器 和外部网络定时器。 实施例一 本实施例提供了一种用于视频会议的流量处理的 MCU,该 MCU的内部处 理单元连接关系如图 6所示。 下面结合附图 6对本实施例的 MCU作进一步的详细描述: 该 MCU 的系统模块部分包括: 一组不同网络能力的视频处理单元 VPU1-VPU8, 一组音频处理单元 APU1、 APU2, 媒体处理资源管理单元 MP, 和网络处理单元 NPU。 其中 APUl、 APU2、 VPU1-VPU4连接到百兆以太网上 组成, 再和 VPU5-VPU8、 MP、 NPU—起接入千兆以太网交换芯片上, 组成星 型拓朴结构网络。 其中, MP用于探测并管理 MCU 系统中内部网络组网关系和节点能力信 息, 并将该信息发送给 NPU。 NPU建立 MCU内部网络组网关系表, 并以节点 为最基本单位目标来建立发送緩冲队列。 NPU接收 MCU外部数据, 按 MP配 置下来的 MCU 内部网络能力关系表换算带宽定时定量的分发进内网 APU和 VPU。 不同的功能会议要求使用的 VPU处理能力和个数不同, 统一由 MP分配 资源, 并告之 NPU数据流向。 在本实施例中, 视频会议的模式为 20个终端参 加会议, 要求多画面功能, 即每一个终端啫卩需要 16画面, 图 6 中的 VPU1、 VPU4、 APUl参与到数据处理中。 则此 MCU内部网络流量控制算法处理步骤 如下: 步骤 1、 MP探测 MCU系统资源, 包括 VPU、 APU的 IP地址和网络能力 信息。
步骤 2、 MP 4巴 VPU、 APU的 IP地址和网络能力信息下发至 NPU。 步骤 3、NPU内部建立一份 MCU内部网络能力拓朴图。如图 2所示, APU1 : IP: 128.0.7.1 , 网络能力 100M; VPU1 : IP: 128.0.7.3 , 网络能力 100M; VPU4: IP: 128.0.7.6, 网络能力 1000M。 以及建立一张 APU、 VPU所能处理的网络能 力表, 如表 1所示。 步骤 4、 MP获取开会模式, 并计算分配足够资源的 VPU和 APU数量参 与会议处理 (如使用 APU1 , VPU1 , VPU4 )„ 步骤 5、 MP把需要建立的会议数据通道流信息下发给 NPU。 表 1
步骤 6、 NPU根据通道信息创建通道, 并准备接受 MCU外网发给 NPU的 数据流。 步骤 7、 NPU为参与的 APU1、 VPU1 , VPU4分别建立緩冲队列 Ql、 Q2、 Q3 , NPU对 MCU外部网络建立一个緩冲队列 Q4。
步骤 8、才艮据步骤 3建立的网络能力关系表计算出参与流量处理的 APU和 VPU每单位时间可发送的媒体数据流, 并为 MCU内部网络启动一个发送队列 定时器 T1 , 为 MCU外部网络启动一个定时器 T2。 步骤 9、 接受 MCU外方的数据包至 NPU, NPU进行网络数据包的 QoS ( Quality Of Service, 服务质量)质量处理。 再按照 MP下发的数据通道关系, 决定发送数据到哪个 VPU或 APU。 例如, 当有 2个通道的媒体数据需要发给 VPU 1 , 这时只需要把数据推向步骤 7建立的緩冲队列 Q 1。 步骤 10、 接受 MCU内部网络数据包, 向外部緩冲队列 Q4发送数据包。 步 4聚 11、 返回步 4聚 9。 步骤 12、 当 MCU外网定时器 T2时间到, 处理外网緩冲队列 Q4 , 根据 IP 或网段查询表 1 , 其能力为 1000M, 本次发送包数从 Q4中推出不超过 850个 包数据, 退出并重置定时器。 步骤 13、 MCU内网定时器 T1时间到, 轮询一圏处理緩冲队列 Ql , Q2, Q3。 才艮据 IP查询表 1 , Q1 的 APU1能力为 100M, 本次从 Q1 中 4舞出不超过 80个数据包; Q2的 VPU1能力为 100M, 本次从 Q2中推出不超过 80个数据 包; Q3的 VPU2能力为 1000M, 本次从 Q3中 4舞出不超过 850个数据包。 在本实施例中,通过定时定量的向 APU和 VPU发送数据包可以消除 MCU 外部网络峰值对 APU、 VPU瞬时处理媒体数据能力要求的影响, 使得 APU、 VPU任何时候收到的都是平滑网络数据。 从而消除 NPU到 APU、 VPU的丢包 风险。避免 MCU的处理性能瓶颈为 FE, GE混合组网的网络能力。提高在 VPU、 APU同等能力下的 MCU的总体处理能力。 在本发明的上述各实施例中, 根据参与视频会议流量处理的节点的网络能 力来分配节点的流量,使得当网络出现波动时,节点的流量能够保持不变, MCU 内部网络产生一种平滑的网络效果, 从而较少了节点的丢包率, 解决了现有技 术中, 由于网络波动使得 MCU网络内部节点丢包严重的问题, 进而达到了提 高 MCU系统性能的效果。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以 用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多 个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码
来实现, 从而, 可以将它们存储在存储装置中由计算装置来执行, 并且在某些 情况下, 可以以不同于此处的顺序执行所示出或描述的步骤, 或者将它们分别 制作成各个集成电路模块, 或者将它们中的多个模块或步骤制作成单个集成电 路模块来实现。 这样, 本发明不限制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领 域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的 ^"神和原则 之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之 内。
Claims
1. 一种用于多点控制单元 MCU的流量处理方法, 包括:
根据视频会议的模式和预存的 MCU 内部网络节点的网络能力信息 确定参与所述视频会议的节点;
才艮据所述节点的网络能力为所述节点分配视频会议流量。
2. 居权利要求 1所述的流量处理方法, 其中, 在才艮据视频会议的模式和 预存的 MCU 内部网络节点的网络能力信息确定参与所述视频会议的节 点之前, 还包括:
获取并保存所述 MCU内部网络节点的网络能力信息。
3. 根据权利要求 1所述的流量处理方法, 其中, 根据所述节点的网络能力 为所述节点分配视频会议流量包括:
接收视频会议的数据包并将所述数据包存储在所述节点的緩冲对列 中;
才艮据所述节点的网络能力将所述数据包发送至所述节点。
4. 根据权利要求 3所述的流量处理方法, 其中, 所述根据所述节点的网络 能力将所述数据包发送至所述节点包括:
根据所述节点的网络能力计算出单位时间内该节点所能够处理的数 据量;
在预定的时间段内, 向所述节点发送不超过该节点单位时间内所能 够处理的数据量的数据包。
5. 根据权利要求 1 至 4 中任一项所述的流量处理方法, 其中, 所述 MCU 内部网络节点的网络能力信息包括: 所述 MCU 内部网络节点的带宽和 IP地址信息。
6. —种用于 MCU的流量处理装置, 包括:
资源管理单元, 设置为根据视频会议的模式和预存的 MCU 内部网 络节点的网络能力信息确定参与所述视频会议的流量处理的节点; 流量处理单元, 设置为 居所述节点的网络能力为所述节点分配视 频会议流量。
7. 根据权利要求 6所述的流量处理装置, 其中, 所述资源管理单元还设置 为获取并保存所述 MCU内部网络节点的网络能力信息。
8. 根据权利要求 6所述的流量处理装置, 其中, 所述流量处理单元包括: 数据接收模块, 设置为接收视频会议的数据包并将所述数据包存储 在所述节点的緩冲对列中;
数据发送模块, 设置为根据所述节点的网络能力将所述数据包发送 至所述节点。
9. 根据权利要求 8所述的流量处理装置, 其中, 所述数据发送模块包括: 计算子模块, 设置为根据所述节点的网络能力计算出单位时间内该 节点所能够处理的数据量;
定时子模块, 设置为设定从所述节点的所述緩冲队列向所述节点发 送数据包的时间段;
发送子模块, 设置为在定时子模块设定的时间段内, 向节点发送不 超过该节点单位时间内所能够处理的数据量的数据包。
10. 根据权利要求 6至 9 中任一项所述的流量处理装置, 其中, 所述 MCU 内部网络节点的网络能力信息包括: 所述 MCU 内部网络节点的带宽和 IP地址信息。
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