WO2016086371A1 - 一种会议资源调度的方法及装置 - Google Patents

一种会议资源调度的方法及装置 Download PDF

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Publication number
WO2016086371A1
WO2016086371A1 PCT/CN2014/092928 CN2014092928W WO2016086371A1 WO 2016086371 A1 WO2016086371 A1 WO 2016086371A1 CN 2014092928 W CN2014092928 W CN 2014092928W WO 2016086371 A1 WO2016086371 A1 WO 2016086371A1
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site
mcu
media
access
resources
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PCT/CN2014/092928
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English (en)
French (fr)
Inventor
欧阳月令
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华为技术有限公司
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Priority to PCT/CN2014/092928 priority Critical patent/WO2016086371A1/zh
Publication of WO2016086371A1 publication Critical patent/WO2016086371A1/zh

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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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for scheduling conference resources.
  • the multipoint control unit is responsible for forwarding and transcoding the audio and video data in the conference.
  • the MCU can be dedicated to the dedicated DSP or media-accelerated integrated circuit (application).
  • a specific integrated circuit (ASIC) chip performs encoding and decoding processing of audio and video.
  • a soft MCU consisting of a single physical server
  • the capacity of a single soft disk MCU with a single physical server is small, which makes it impossible to support the large-capacity conference with full adaptation and multi-screen per port.
  • the idea of a soft MCU media processor cluster is proposed, and multiple physical machine clusters form a soft MCU.
  • a physical machine responsible for the main control processing a physical machine responsible for signaling processing (which can be deployed with the media machine when the capacity is small), and a media machine responsible for audio and video processing, wherein the media machine supports multiple units Cluster.
  • a soft MCU composed of multiple physical machine clusters presents the upper layer service system as a single MCU. When the service system performs resource scheduling, the service is dispatched to the soft MCU.
  • the soft MCU is responsible for allocating services among multiple physical machines.
  • SVC Scalable Video Coding
  • AVC advanced video coding
  • the Service Management Center (SMC) in the videoconferencing system is responsible for the unified management of resources and resource scheduling on multiple MCUs.
  • SMC Service Management Center
  • An object of the present invention is to provide a method and an apparatus for scheduling a conference resource to solve the problem that the prioritized resource scheduling policy cannot be provided for various types of conferences and venues.
  • an embodiment of the present invention provides an MCU, which is applied to a video conference system, where the MCU includes a general server cluster, and the general server is used for media control and processing, and a general server that provides a service network port.
  • the MCU includes a general server cluster, and the general server is used for media control and processing, and a general server that provides a service network port.
  • a media access and processor the media access and processor has media adaptation resources and IP access and forwarding resources;
  • the MCU is connected to multiple sites, and the MCU is configured to allocate conference resources to the multiple sites, where the conference resources include IP access and forwarding resources, and media adaptation resources;
  • the MCU is configured to determine a site type of the first site
  • the MCU is further configured to allocate a first media access and a processor to the first site to provide IP access and forwarding resources;
  • the MCU is further configured to determine a site type of the second site in the multiple sites;
  • the MCU is further configured to determine that the first media access and the remaining IP access and forwarding resources of the processor meet the requirement of the second site, The site allocates the first media access and processor to provide IP access and forwarding resources.
  • the MCU is further configured to determine that the first media access and the remaining IP access and forwarding resources of the processor, and the media adaptation resource meet the second site.
  • the first media access and processor are allocated to the second site to provide IP access and forwarding resources, and media adaptation resources.
  • a general-purpose server for media control and processing in the general server cluster as a media processor, the media processor having a media adaptation resource,
  • the MCU is further configured to: determine that the remaining IP access and forwarding resources of the first media access and the processor meet the requirement of the second site, and the first When the media access and the remaining media adaptation resources of the processor do not meet the requirements of the second site, the first media access and processor are allocated to the second site to provide IP access and forwarding resources, and the allocation is performed.
  • the first media processor provides media adaptation resources.
  • the MCU is further used to Determining the first media access and processor When the remaining IP access and forwarding resources and the media adaptation resources do not meet the requirements of the second site, the second site is allocated a second media access and processor to provide IP access and forwarding resources. And media adaptation resources.
  • a general-purpose server for media control and processing in the general server cluster is used as a media processor, where the media processor is provided with a media adaptation resource,
  • the MCU is further configured to allocate the first media access and the processor.
  • the MCU is also used when the media access and the processor that meet the IP access and forwarding resource requirements of the first site and the media adaptation resource requirements are not present.
  • the media processing and processing machines satisfying the requirements of the IP access and forwarding resources and the media processing machines satisfying the requirements of the media adaptation resources are respectively allocated to the AVC site.
  • the MCU is further used on the multiple general-purpose servers. Adding additional audio decoding resources and additional video codec resources to the AVC venues in the multiple venues.
  • the MCU is further configured to receive a conference access request message sent by the multiple sites, and determine a site type of the multiple sites according to the conference access request message; or
  • the MCU is further configured to receive a notification message that is sent by the SMC, where the notification message carries a site type of the multiple sites that are connected to the MCU.
  • the MCU is further configured to determine conference resources required by the multiple sites.
  • the embodiment of the present invention further provides another MCU, which is applied to a video conference system, where the MCU includes a general server cluster and a hardware resource board, where the general server cluster is used for media control and processing, and provides services.
  • the universal server of the network port serves as a media access and processing machine, and the media access and processor and the hardware resource board both have media adaptation resources and IP access and forwarding resources;
  • the MCU is connected to multiple site terminals, and the MCU is configured to allocate conference resources to the multiple sites, where the conference resources include IP access and forwarding resources, and media adaptation resources;
  • the MCU is configured to determine a site type of the first site
  • the MCU when the MCU has a first hardware resource board that meets the IP access and forwarding resource requirements of the first site, the MCU is further configured to be the first site. Allocating the first hardware resource board to provide IP access and forwarding resources. When the first hardware resource board meets the media adaptation resource requirement of the first site, the MCU is further configured to be the first The site allocates the first hardware resource board to provide media adaptation resources.
  • the MCU is further configured to allocate another hardware resource board to provide media adaptation resources for the first site.
  • the MCU When the MCU does not have the first hardware resource board that meets the IP access and forwarding resource requirements of the first site, the MCU is further configured to allocate, for the first site, the IP that meets the first site.
  • a first media access and processor that accesses and forwards resource requirements.
  • a general server for media control and processing in the general server cluster is used as a media processor; and the media processor is provided with a media adaptation resource;
  • the MCU is further configured to be used on the media processor.
  • the second site allocates media adaptation resources.
  • the MCU is further configured to allocate an IP access and forwarding resource and a media adaptation resource to the second site in the multiple sites on the first hardware resource board.
  • the MCU is also used for The first site allocates a first media access and processor
  • the MCU is further configured to meet the first location for the first site.
  • the MCU is further used by the MCU.
  • the first media access and processor are allocated to other SVC sites in the multiple sites.
  • the MCU is also used to The other SVC sites in the multiple sites allocate the first hardware resource board.
  • the AVC site in the multiple sites is allocated to multiple When a general server or a plurality of hardware resource boards are allocated, additional audio decoding resources and additional video codec resources are allocated on the plurality of general servers or multiple hardware resource boards.
  • the MCU is further configured to receive a conference access request message sent by the multiple sites, and determine a site type of the multiple sites according to the conference access request message; or
  • the MCU is further configured to receive a notification message that is sent by the SMC, where the notification message carries a site type of the multiple sites that are connected to the MCU.
  • the MCU is further configured to determine conference resources required by the multiple sites.
  • an embodiment of the present invention provides a method for an MCU to perform conference resource scheduling, which is applied to a video conference system, where the MCU includes a general server cluster, where the general server cluster is used for media control and processing, and provides services.
  • the universal server of the network port serves as a media access and processing machine, and the media access and processing device has media adaptation resources and IP access and forwarding resources, and the conference resources include IP access and forwarding resources, and media adaptation. Resources,
  • the MCU is connected to multiple sites, and the site type of the first site in the multiple sites is determined;
  • the MCU allocates a first media access and processor to the first site to provide IP access and forwarding resources;
  • the MCU determines that the first media access and the remaining IP access and forwarding resources of the processor meet the requirements of the second site,
  • the first media access and processor is configured to provide IP access and forwarding resources.
  • the method further includes:
  • the MCU determines that the first media access and the remaining IP access and forwarding resources of the processor, and the media adaptation resources meet the requirements of the second site. Allocating the first media access and processor to the second site to provide IP access and forwarding resources, and media adaptation resources.
  • the general server for media control and processing in the general server cluster is used as a media processing machine.
  • the media processor has a media adaptation resource, and the method further includes:
  • the MCU is further configured to: determine that the remaining IP access and forwarding resources of the first media access and the processor meet the requirement of the second site, and the first When the media access and the remaining media adaptation resources of the processor do not meet the requirements of the second site, the first media access and processor are allocated to the second site to provide The IP access and forwarding resources are allocated to the first media processor to provide media adaptation resources.
  • the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, in the third possible implementation manner of the third aspect if the second conference site is an AVC conference site, When the MCU determines that the first media access and the remaining IP access and forwarding resources of the processor, and the media adaptation resources do not meet the requirements of the second site, assigning a second to the second site Media access and processor to provide IP access and forwarding resources, as well as media adaptation resources.
  • a universal server for media control and processing in the general server cluster is used as a media processor, and the media processor is provided with a media adaptation resource, and the method further includes:
  • the method further includes:
  • the MCU allocates the first media access and processor to the In the AVC site, when there is no media access and processor in the general server cluster that meets the IP access and forwarding resource requirements of the first site and the media adaptation resource requirement, the MCU is the AVC site.
  • the method further includes:
  • the additional audio decoding resources and the additional video codec resources are allocated on the plurality of general servers.
  • the method further includes:
  • the MCU receives the conference access request message sent by the multiple sites, and determines the site type of the multiple sites according to the conference access request message; or
  • the MCU receives the notification message sent by the SMC, where the notification message carries the site type of the multiple sites connected to the MCU.
  • the method before the MCU allocates the conference resource to the multiple sites, the method further includes:
  • the MCU determines conference resources required by the multiple sites.
  • the embodiment of the present invention further provides another method for the MCU to perform conference resource scheduling, which is applied to a video conference system, where the MCU includes a general server cluster and a hardware resource board, and the general server cluster is used for media control. And processing, and a general-purpose server providing a service network port as a media access and processor, the conference resource includes an IP access and forwarding resource, and a media adaptation resource, the media access and processor, and the hardware resource
  • the boards all have media adaptation resources and IP access and forwarding resources, and the methods include:
  • the MCU is connected to multiple sites, and the site type of the first site in the multiple sites is determined;
  • the MCU allocates the first site to the first site.
  • the first hardware resource board provides the IP access and forwarding resources.
  • the MCU allocates the first Hardware resource board to provide media adaptation resources.
  • the method further includes:
  • the MCU allocates another hardware resource board to provide media adaptation resources for the first site.
  • the method further includes:
  • the MCU When the MCU does not have the first hardware resource board that meets the IP access and forwarding resource requirements of the first site, the MCU allocates the first site to meet the IP access of the first site.
  • the first media access and processor that forwards the resource requirements.
  • a general-purpose server for media control and processing in the general server cluster is used as a media processing device, where the media processing device is provided with a media adaptation resource.
  • the method also includes:
  • the MCU When the hardware resource board and the media access and the processor in the MCU do not meet the media adaptation resource requirements of the second site in the multiple sites, the MCU is the media processor.
  • the second venue allocates media adaptation resources.
  • the MCU allocates an IP access and forwarding resource, and a media adaptation resource, to the second site on the first hardware resource board.
  • the method further includes:
  • the MCU is the first The venue allocates the first media access and processor
  • the MCU allocates the IP of the first site to the first site.
  • the first hardware resource board that accesses and forwards resource requirements.
  • the method further includes:
  • the MCU is The other media access and processor are allocated to other SVC sites in the multiple sites.
  • the method The MCU is: when the first site is an SVC site, and the remaining resources on the first hardware resource board meet the IP access and forwarding resource requirements of other SVC sites in the multiple sites, the MCU is The other SVC sites in the multiple sites allocate the first hardware resource board.
  • the method further includes:
  • the MCU is the AVC in the multiple sites on the multiple general servers or multiple hardware resource boards.
  • the venue allocates additional audio decoding resources and additional video codec resources.
  • the method further includes:
  • the MCU receives the conference access request message sent by the multiple sites, and determines the site type of the multiple sites according to the conference access request message; or
  • the MCU receives the notification message sent by the SMC, where the notification message carries the site type of the multiple sites connected to the MCU.
  • the method before the MCU allocates the conference resource to the multiple sites, the method further includes:
  • the MCU determines conference resources required by the multiple sites.
  • the embodiment of the present invention provides a conference resource scheduling method and an MCU, where the MCU is a soft MCU composed of a general server cluster, and the MCU allocates conference resources to multiple sites connected to the MCU.
  • the media access and the processor are preferentially allocated to provide the IP access and forwarding resources for the SVC site.
  • the site that belongs to the same conference is preferentially allocated to the same physical machine, and the conference is reduced.
  • the code stream is forwarded between different physical machines.
  • the embodiment of the present invention provides another conference resource scheduling method and an MCU, where the MCU is a hybrid MCU composed of a general server cluster and a hardware resource board, and the MCU allocates conference resources to multiple sites connected to itself, for the SVC.
  • the MCU preferentially allocates the media access and the processor to provide the IP access and forwarding resources for the SVC site.
  • the MCU preferentially allocates the hardware resource board to provide the IP access and forwarding resources for the AVC site.
  • a better resource allocation strategy is provided, so that the AVC site that needs the media adaptation resource is allocated to the hardware resource board as much as possible to improve the efficiency of media processing.
  • FIG. 1 is a schematic diagram of a connection relationship of a video conference system according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of hardware of a soft MCU according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a hardware of a hybrid MCU according to an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a connection relationship of a video conference system according to an embodiment of the present invention.
  • the SMC has conference management functions, including MCU resource pool management, conference convening, conference control, and historical information viewing.
  • the SMC connects the conference terminal to the corresponding MCU and controls the conference.
  • the site control includes at least the following operations: deleting the site, calling/hanging, broadcasting/cancelling the broadcast, watching, mute/unmute, closing/unblocking, audio loopback/video loopback/cancel loopback, and opening / Close the site video, set the volume, view the site details, view the site capabilities, and view the site network packet loss data.
  • the SMC When the SMC receives the conference reservation request or the instant conference request, the SMC performs resource allocation and conference scheduling according to the requirements of the conference, the distribution of the participating terminals, and the status of the network resources, and allocates the conference to the corresponding MCU.
  • the allocation process and the conference scheduling process are implemented by using the prior art, which is not limited by the embodiment of the present invention.
  • the resource allocation and scheduling of the MCU needs to be performed by the MCU.
  • the embodiment of the present invention provides a method for scheduling the resources by the MCU according to the site type.
  • the soft MCU is composed of multiple general-purpose server cluster virtualization deployments
  • Hybrid MCUs include a common server cluster for virtualized deployments, as well as dedicated hardware resource boards.
  • the dedicated hardware resource board in the hybrid MCU can be configured with the number and specifications of the hardware resource boards according to requirements, which is not limited by the present invention.
  • Relatively dedicated media resource boards such as digital signal processors (DSPs), audio and video accelerated ASICs, etc.
  • general-purpose servers have lower performance in media service processing such as audio and video encoding and decoding. Therefore, combining the general server and the media resource board of the dedicated hardware to form a hybrid MCU, wherein the general server can be preferentially used for system control and signaling processing, and the dedicated hardware media resource board is preferentially used for media encoding and decoding processing. .
  • a media processor specifically a general-purpose server that deploys media control and media processing, and completes audio and video on a single physical machine. Frequency control and processing, you can deploy only audio, deploy video only, or deploy audio and video as needed.
  • the media processor does not provide a service network port externally, and does not directly interact with the terminal site to exchange RTP streams;
  • the media access and processing device specifically the function of the media processor, provides a service network port and performs an interaction of the RTP code stream with the terminal site.
  • IP access and forwarding resources This resource is used to complete the IP access and forwarding processing of the site RTP stream. Each site accessing the MCU needs to allocate the resource. The resource is provided by the media access and processing function.
  • the media adaptation resource is used for the encoding and decoding of the audio and video.
  • the media adaptation resource is required when the site data needs to be encoded and decoded. For the site with the pure forwarding function, the resource does not need to be allocated.
  • the physical machine refers to a general-purpose server or a hardware resource board.
  • the resource scheduling method provided by the embodiment of the present invention provides a resource allocation strategy for various types of conferences (including SVC conferences, AVC conferences, and SVC+AVC conferences) on a soft MCU and/or a hybrid MCU of a cluster, including , the allocation strategy for the first site, and the allocation strategy for the non-first site.
  • the principle of distribution is summarized as follows:
  • the IP access and forwarding resources of the site and the media adaptation resources are preferentially allocated on the same board or physical machine to minimize the forwarding of RTP streams between different boards and different physical machines.
  • the multiple sites in a conference are allocated on the same board or on the same physical machine to reduce the data forwarding between the board and the physical device, and avoid the additional resources consumed by the board and the physical machine.
  • the site that requires media adaptation resources such as audio and video codec is preferentially allocated to the hard media machine, and only the site that needs to forward resources is preferentially allocated to the soft media machine, thereby realizing the effective use of the general server and the hardware resource board.
  • the embodiments of the present invention provide the IP access and forwarding resources required for media processing and the optimal allocation strategy of the media adaptation resources for the soft MCU and/or the hybrid MCU supporting the cluster by using the foregoing allocation principle, so as to achieve reasonable allocation of resources and Use, at the same time, enhance the video effect of the site to watch each other.
  • FIG. 1 is a schematic structural diagram of a video conference system for resource scheduling according to an embodiment of the present invention.
  • the system for resource scheduling includes an SMC, a hybrid MCU, a soft MCU, an AVC terminal, and an SVC terminal.
  • the conference corresponding to the system shown in FIG. 1 is a hybrid conference of SVC+AVC.
  • the system result shown in FIG. 1 is only an example of the embodiment of the present invention.
  • the video conference system may include only a soft MCU or a hybrid MCN, and may also include a soft MCU and A hybrid MCU; a conference can include only the SVC site or the AVC site, or both the SVC site and the AVC site.
  • the embodiments of the present invention are not limited to the embodiments of the present invention.
  • the embodiments of the present invention allocate resources required for a site to which a single MCU belongs.
  • a multi-point control unit MCU provided by an embodiment of the present invention is applied to a video conference system, where the MCU includes a universal a server cluster, a general server for media control and processing in the general server cluster, and a service server providing a service network port as a media access and processor; the media access and processor having media adaptation resources and IP access and Forwarding resources;
  • the MCU is connected to multiple sites, and the MCU is configured to allocate conference resources to the multiple sites, where the conference resources include IP access and forwarding resources, and media adaptation resources;
  • the MCU is configured to determine a site type of the first site
  • the MCU is further configured to allocate a first media access and a processor to the first site to provide IP access and forwarding resources;
  • the MCU is further configured to determine a site type of the second site in the multiple sites;
  • the MCU is further configured to determine that the first media access and the remaining IP access and forwarding resources of the processor meet the requirement of the second site, The site allocates the first media access and processor to provide IP access and forwarding resources.
  • the MCU described in the first embodiment is composed of a general-purpose server, and thus is a soft MCU.
  • the conference site includes multiple sites.
  • the site can be an SVC site or an AVC site.
  • the site where the resource is allocated is the first site.
  • the first site may be the first site that requests access to the MCU.
  • the SVC site only needs IP access and forwarding resources, and does not need media adaptation resources. Therefore, the MCU allocates media access and processing machines to the SVC site.
  • the SVC site of a conference is allocated to the same media access and processor as much as possible. Reduce data forwarding across physical machines in a meeting.
  • the MCU allocates a media access and processor with the most IP access and forwarding resources to the first site.
  • the MCU is further configured to determine that the first media access and the remaining IP access and forwarding resources of the processor, and the media adaptation resource meet the second site.
  • the first media access and processor are allocated to the second site to provide IP access and forwarding resources, and media adaptation resources.
  • the AVC site requires IP access and forwarding resources and media adaptation resources.
  • the first media access and processor allocated to the first site meets the IP access and forwarding resource requirements and media adaptation resource requirements of the subsequent AVC site.
  • the first media access and processor allocated to the first site is further allocated to the subsequent AVC site, so as to make as many sites as possible to process the same physical machine.
  • the general-purpose server constituting the MCU according to the first embodiment further includes a media processor, which is used for media control and processing, and has a media adaptation resource.
  • the MCU is further configured to: determine that the remaining IP access and forwarding resources of the first media access and the processor meet the requirement of the second site, and the first When the media access and the remaining media adaptation resources of the processor do not meet the requirements of the second site, the first media access and processor are allocated to the second site to provide IP access and forwarding resources, and the allocation is performed.
  • the first media processor provides media adaptation resources.
  • the MCU is further configured to determine that the first media access and the remaining IP access and forwarding resources of the processor, and the media adaptation resource do not satisfy the second site.
  • the second site is allocated a second media access and processor to provide IP access and forwarding resources, and media adaptation resources.
  • the media may be allocated for the subsequent AVC site.
  • the processor provides media adaptation resources.
  • the media access and processing can be reallocated for the subsequent AVC site. machine.
  • the MCU is further configured to allocate the first media access and the processor.
  • the MCU is also used when the media access and the processor that meet the IP access and forwarding resource requirements of the first site and the media adaptation resource requirements are not present.
  • the media processing and processing machines satisfying the requirements of the IP access and forwarding resources and the media processing machines satisfying the requirements of the media adaptation resources are respectively allocated to the AVC site.
  • the MCU When the first site of the resource allocated by the MCU is the AVC site, the AVC site needs IP access and forwarding resources, and the media adaptation resource. Therefore, media access with the largest resource remaining and the largest remaining resources is preferred.
  • the processor when there is no media access and processor that can meet the above two resource requirements at the same time, the MCU is an AVC site media access and processor and a media processor, respectively providing IP access for the AVC site And forwarding resources, as well as media adaptation resources.
  • the AVC site in a conference may be allocated a plurality of physical machines, and the media resource transmission requirement exists between the multiple physical machines. Therefore, in the first embodiment, if the AVC sites in the multiple sites are located, The MCU is further configured to allocate an additional audio decoding resource and an additional video codec resource to the AVC site in the multiple sites on the multiple general servers.
  • the MCU needs to determine the site type of the site under it and the resource requirements of each site. It should be noted that the foregoing various types of possible implementations in the prior art may be used to obtain the foregoing site type and resource requirements, which are not limited in this embodiment of the present invention.
  • the conference management center SMC can send a notification message to the MCU to inform the site type and resource requirements of each site.
  • the MCU can also obtain the site type and resource requirements of each site when the conference is accessed.
  • the first embodiment of the present invention provides a strategy for a soft MCU to allocate resources to an SVC site and an AVC site.
  • each SVC site and AVC site in the conference are allocated to the same media access in the general server cluster.
  • the processor further allocates a media processor to the AVC site to provide media adaptation resources when a media access and processor does not meet the media adaptation resource requirements of the AVC site.
  • the AVC site in the conference is assigned to multiple physical machines, the above multiple physics Additional audio decoding resources are further allocated onboard, as well as additional video encoding and decoding resources.
  • the sites in a conference are allocated to the least physical machine as much as possible, which reduces the forwarding of code streams in different conferences between different physical machines, reduces network load, and improves The effect of the meeting.
  • the embodiment of the present invention further provides another MCU, which is applied to a video conference system, where the MCU includes a general server cluster and a hardware resource board, where the general server cluster is used for media control and processing, and the service network port is provided.
  • the server functions as a media access and processor, and the media access and processor and the hardware resource board both have media adaptation resources and IP access and forwarding resources;
  • the MCU is connected to multiple site terminals, and the MCU is configured to allocate conference resources to the multiple sites, where the conference resources include IP access and forwarding resources, and media adaptation resources;
  • the MCU is configured to determine a site type of the first site
  • the MCU when the MCU has a first hardware resource board that meets the IP access and forwarding resource requirements of the first site, the MCU is further configured to be the first site. Allocating the first hardware resource board to provide IP access and forwarding resources. When the first hardware resource board meets the media adaptation resource requirement of the first site, the MCU is further configured to be the first The site allocates the first hardware resource board to provide media adaptation resources.
  • the MCU is further configured to allocate an IP access and forwarding resource and a media adaptation resource to the second site in the multiple sites on the first hardware resource board.
  • the MCU in the second embodiment of the present invention is composed of a general server cluster and a hardware resource board, and is a hybrid MCU.
  • the hybrid MCU allocates resources for each site, the hardware resource board is preferentially allocated to the AVC site, that is, the audio and video processing capability of the hardware resource board is utilized to improve the audio and video processing efficiency.
  • the hybrid MCU selects a hardware resource board with the most idle resources to provide a conference resource for the first site.
  • the hybrid MCU may be the first site. Select the board with the most idle resources, and allocate the subsequent sites to the first hardware resource board allocated to the first site or the board on the first hardware resource board as much as possible, so as to reduce the code in the conference as much as possible.
  • the flow is forwarded between boards or between physical machines.
  • the MCU is further configured to allocate other hardware resource boards to provide media adaptation resources for the first site.
  • the MCU is further configured to meet the first location for the first site.
  • the hybrid MCU selects the media access and processor that has the most IP access and forwarding resources in the general server cluster to provide resources for the first site.
  • the MCU also has a media adaptation resource.
  • the MCU uses And assigning a media adaptation resource to the second site on the media processor.
  • the MCU When the first site is an SVC site, when the first media access and the processor meet the IP access and forwarding resource requirements of the first site, the MCU is further configured to be The first site allocates the first media access and processor;
  • the MCU is further configured to meet the first location for the first site.
  • the MCU is further used by the MCU.
  • the first media access and processor are allocated to other SVC sites in the multiple sites.
  • the SVC site only needs IP access and forwarding resources. Therefore, the SVC site is preferentially allocated to the media access and processor in the general server cluster, so that the hardware in the hybrid MCU can be mixed as much as possible.
  • the resources in the resource board are left to the AVC site, and the audio and video processing capabilities of the hardware resource board are used to provide efficient audio and video processing for the AVC venue.
  • the MCU is on the multiple general servers or multiple hardware resource boards.
  • the AVC venue allocates additional audio decoding resources and additional video codec resources.
  • the MCU needs to determine the site type of the site under it and the resource requirements of each site. It should be noted that the foregoing various types of possible implementations in the prior art may be used to obtain the foregoing site type and resource requirements, which are not limited in this embodiment of the present invention.
  • the conference management center SMC can send a notification message to the MCU to inform the site type and resource requirements of each site.
  • the MCU can also obtain the site type and resource requirements of each site when the conference is accessed.
  • the hybrid MCU disclosed in the second embodiment of the present invention performs the conference resource scheduling policy.
  • the SVC site in the conference is allocated to the media access and processor in the general server cluster as much as possible.
  • the optimal IP address of all the SVC sites in the conference. Access and forwarding resources are provided by the same media access and processor. Allocating the AVC site in the conference to the hardware resource board, so that the IP access and forwarding resources of the AVC site and the media adaptation resource are on the same hardware resource board, and the two resources of all the SVC sites in the conference are optimal. Both are provided by the same board on the same hardware resource board. Further, the IP access and forwarding resources of the AVC site and the IP access and forwarding resources of the SVC site are on the same physical machine.
  • the foregoing conference resource scheduling policy disclosed in Embodiment 2 improves the utilization efficiency of the general server and the hardware resource board.
  • the third embodiment of the present invention provides a resource allocation process of a soft MCU, which is briefly described as follows:
  • the conference type includes an SVC conference, an AVC conference, and an SVC+AVC conference.
  • the conference type is processed according to the SVC conference resource allocation policy;
  • the conference type is an AVC conference
  • the conference type is SVC+AVC conference
  • the SVC+AVC conference resource allocation policy is processed;
  • the soft MCU performs the SVC conference resource allocation process (all sites are SVC sites):
  • the soft MCU performs the AVC conference resource allocation process (all sites are AVC sites):
  • the allocation of IP access and forwarding resources and the allocation of audio and video adaptation resources are sequentially performed according to the first site allocation policy
  • the IP access and forwarding resources, audio and video video resources are allocated in sequence according to the non-first site allocation policy; if there is a cross-physical machine in the process of allocation, At the same time, additional audio decoding resources and allocation of additional video codec resources are required;
  • the SVC+AVC conference resource allocation process is implemented in the soft MCU (the SVC site and the AVC site are included in the conference):
  • the soft MCU performs the SVC conference resource allocation process as follows:
  • the first site allocation policy sorting the media access and the processor in the general server cluster according to the idle IP access and forwarding resources, and then on the media access and processing machine with the most idle IP access and forwarding resources.
  • the first site is allocated IP access and forwarding resources; if there is no media access and processor that meets the IP access and forwarding resource requirements of the first site, the system considers that the system has insufficient IP access and forwarding resources, and the allocation fails;
  • Non-first site allocation policy For the resource allocation of the non-first site of the SVC conference, you need to consider the resource allocation of the SVC site. The strategy is to ensure that the IP access and forwarding resources of the SVC site in a conference are on the same physical machine. If there is not enough IP access and forwarding resources on the media access and processor of the previously allocated SVC site, a new media access and processor is allocated for the subsequent SVC site.
  • the soft MCU performs the AVC conference resource allocation process as follows:
  • AVC conferences including only AVC sites
  • IP access and forwarding resources as well as media adaptation resources.
  • media adaptation resources When an AVC site is allocated on multiple physical machines, additional audio decoding resources, additional video encoding and decoding resources need to be allocated.
  • the first site allocation policy for the AVC site, the IP access and forwarding resources are first allocated, and the universal server cluster has a media access and processing device that satisfies the IP access and forwarding resources of the first site.
  • the media access and processing device that selects the most idle IP access and forwarding resources in the general server cluster provides IP access and forwarding resources for the first site.
  • the media network resource is allocated, and the media access and the processor are allocated to the first site when the media access and the processor of the first site are simultaneously allocated.
  • Providing a media adaptation resource when the allocated media access and processor does not meet the media adaptation resource requirement of the first site, selecting a media processor in the general server to provide media adaptation for the first site Further, when the media processing resources of the first site cannot meet the media adaptation resource requirements of the first site, the media access and the media access that meets the requirements of the first site media adaptation resource are reselected.
  • the processor provides media adaptation resources for the first site.
  • the allocation strategy of the soft MCU to the first site in the AVC conference is: first allocate IP access and forwarding resources, select media access and processor with the most idle IP access and forwarding resources, and further, The media venue resource allocation is performed on the first site in the following order: the media access and processor where the allocated IP access and forwarding resources are located; the media processor; and other media access and processor. All other resources needed for the first site are allocated on the same physical machine as much as possible.
  • Non-first venue allocation strategy
  • the resource allocation of the non-first site of the AVC conference you need to consider the resource allocation of the AVC site in the previous session. Try to make the AVC site adaptation port resources of a conference as close as possible to the IP access and forwarding resources and media on the same physical machine.
  • the adaptation resources should be on the same physical machine as possible.
  • the IP access and forwarding resources of a conference AVC site should be on the same physical machine.
  • Allocate IP access and forwarding resources to other AVC sites after the first site and allocate the SVC sites to be allocated to the media access and processing machines that have the most AVC sites.
  • the media access and processor with sufficient resources can be newly selected.
  • the attachment resource allocation strategy when the conference crosses the physical machine is as follows:
  • Additional audio decoding resource when the audio site in the conference crosses the physical machine, an additional four-way decoding resource is allocated on each physical machine allocated for the conference, and is used for decoding the volume of the four-party audio venue data in the conference. Each physical machine independently performs decoding and mixing processing of the volume of the four-party audio venue data, and the mixed data is forwarded to the audio conference site that is connected to the physical machine;
  • Additional video decoding resources When the video site in the conference crosses the physical machine, additional decoding resources are needed for decoding the viewing source and multi-picture source across the physical machine.
  • the decoding resource adopts a dynamic allocation mechanism, and the control service needs corresponding resources. The allocation is performed on the physical machine that accesses the site. For example, A needs to watch B, A accesses the H.263 AVC site of physical machine 1, and B accesses the H.264 AVC site of physical machine 2.
  • An additional video decoding resource needs to be allocated on the physical machine 1 for decoding the data of the site B;
  • Additional video coding resources When the video conference site in the conference crosses the physical machine, additional coding resources are needed for AVC site data re-encoding, which is used to view multi-picture, low-capacity AVC venues of other AVC sites with the same capability across physical machines. Watching, multi-screen.
  • the coding resource adopts a dynamic allocation mechanism. When the conference control service needs corresponding resources, it is allocated on the physical machine accessed by the conference site. If A needs to watch B, A accesses the 720p h.264 AVC site of the physical machine 1.
  • the additional code resources need to be allocated on the physical machine 2 to re-encode the data of the field B to 720p, and forward it to the physical machine 1 for viewing by the site A.
  • the SVC site needs to allocate IP access and forwarding resources.
  • the AVC site needs to allocate IP access and forwarding resources, and audio and video adaptation resources.
  • the AVC site crosses the physical machine, Additional audio decoding resources, additional video coding, and additional decoding resources are allocated on the corresponding physical machine.
  • the first venue allocation strategy is the first venue allocation strategy
  • the SVC site policy of the SVC conference is processed. For details, see the SVC conference resource allocation process.
  • the first conference site is an AVC site, it is processed according to the first AVC site strategy of the AVC conference of the soft MCU. For details, please refer to the AVC conference resource allocation process, which is not described here.
  • Non-first venue allocation strategy
  • IP access and forwarding resources of all SVC sites in a conference are on the same physical machine as much as possible.
  • the AVC site adaptation port resources of a conference should be on the same physical machine as possible.
  • the IP access and forwarding resources of the conference site and the media adaptation resources should be on the same physical machine as much as possible.
  • IP access and forwarding resources of the SVC site, the media adaptation resources of the AVC site, and the IP access and forwarding resources of the AVC site are on the same physical machine;
  • IP access and forwarding resources of the AVC site and the IP access and forwarding resources of the SVC site are on the same physical machine.
  • the physical machine where the IP access and forwarding resources of the SVC site allocated to the conference are processed is processed (the physical machine is processed according to the number of sites in the host.
  • the physical machine where the AVC site media adaptation resource is allocated is processed (the physical machine is processed according to the order of the number of sites), and the AVC site IP access assigned to the conference is
  • the physical machine where the resource is forwarded is processed (in accordance with The physical machine is processed in the order of the number of sites; the physical machine that scans all of the above physical machines is allocated to the non-first site; If the physical machine does not meet the IP access and forwarding resource requirements of the non-first site, the medium access and processing of the idle IP access and forwarding resources are selected for the non-first site in the general server cluster. machine.
  • the resources to be allocated include an IP access and forwarding resource, an AVC adaptation resource, and first, an IP access and forwarding resource is allocated.
  • the physical machine where the AVC site media adaptation resource is allocated is processed in the conference (the physical machine is processed in the order of the number of the bearer sites), and the AVC site IP access and forwarding resources are allocated to the conference.
  • the physical machine is processed (the physical machine is processed in the order of the number of sites).
  • the physical machine where the IP address of the SVC site is allocated and forwarded is processed. Processing the physical machine in a small order);
  • All the physical machines are sequentially scanned, and the physical devices with the most IP access and forwarding resources are allocated to the non-first site; if all the physical machines do not meet the IP access of the non-first site
  • the forwarding resource and media adaptation resource requirements are processed according to the first AVC site allocation policy in the AVC conference allocation process.
  • the additional conference resources are allocated on the related physical machine, including:
  • Additional audio decoding resources When the AVC site in the conference crosses the physical machine, it is necessary to allocate an additional four-way decoding resource for each conference on each physical machine, which is used for decoding the data of the largest square audio venue in the conference, each physical The machine independently performs decoding and mixing processing of the volume of the maximum square audio field data, and the mixed data is forwarded to the audio conference site that is connected to the physical machine;
  • the additional video decoding resource is used for the SVC site data decoding.
  • the AVC site is used to view the scene of the SVC site in the multi-picture source viewed by the SVC site or the AVC site. It is also used for the viewing process of the AVC site between physical machines.
  • a dynamic allocation mechanism may be adopted, and the control device needs to allocate the corresponding resources to the physical machine of the AVC site where the SVC or AVC site needs to be viewed;
  • Additional video coding resources used for AVC site data encoding, for AVC sites to view AVC sites or SVC venues to view AVC sites in the multi-picture source; also for mutual viewing and multi-screen of AVC venues across physical machines;
  • the dynamic allocation mechanism is used to allocate the physical machine where the AVC site media adaptation resource is located when the conference control service requires corresponding resources.
  • the additional four-way decoding resource indicated in the additional resource allocation process is an exemplary example, and those skilled in the art may understand that the additional decoding resource is changed according to the requirements of the conference. Number of roads.
  • Embodiment 4 of the present invention provides a conference resource allocation process of a hybrid MCU, which is briefly described as follows:
  • the hybrid MCU determines the conference type and schedules conference resources for SVC conferences, AVC conferences, and SVC+AVC conferences.
  • the hybrid MCU performs the SVC conference resource allocation process:
  • the hybrid MCU only needs to allocate IP access and forwarding resources.
  • the first site allocation policy SVC conferences need to be assigned to the soft physical machine first, that is, preferentially assigned to the general server.
  • the media access and processing device that meets the requirements of the first site resource is selected by the IP access and forwarding resources; if multiple media access and processors in the general server cluster meet the requirements of the first site resource, The medium access and the processor that selects the idle IP access and the forwarding resource are allocated to the first site; further, when all the media access and the processor in the general server cluster do not satisfy the first site Selecting a hardware resource board with the most idle IP access and forwarding resources in the hybrid MCU. Further, when there are multiple boards in the hardware resource board, selecting the remaining resources in the hardware resource board. The most single board.
  • the IP address of the SVC site of a conference is on the same physical machine or the same board of the same physical machine. All the physical machines and all the boards are sequentially scanned. If the resource requirements of the non-first site are not met, the resources of the non-first site are allocated according to the first site allocation policy of the conference.
  • the hybrid MCU performs the AVC conference resource allocation process:
  • IP access and forwarding resources and media adaptation resources need to be allocated.
  • additional audio decoding resources and additional video coding are required to be allocated on the relevant physical machines. With decoding resources.
  • the IP access and forwarding resources of the first AVC site are first allocated in the following order: the hardware resource board, the media access and the processor in the general server cluster.
  • the physical device with the most IP access and forwarding resources is preferred. If there are multiple boards on the hardware resource board, the board with the largest number of IP access and forwarding resources is selected. In the above manner, the AVC conference preferentially uses the hardware resource board with the most IP access and forwarding resources, and the media adaptation resources and IP access and forwarding resources allocated to the subsequent sites are avoided as far as possible across the physical machine.
  • the media adaptation resources are allocated to the first AVC site in the following sequence: the hardware resource board where the IP access and forwarding resources are located, other hardware resource boards, and IP interfaces. Media access and processing machines, other media access and processing machines where incoming and outgoing resources are located.
  • the media adaptation resource of the hardware resource board is preferentially allocated to the AVC site to improve the audio and video processing efficiency.
  • the media adaptation resource and the IP access and forwarding resources are on the same physical machine or the same board. The network load caused by the forwarding of the code stream between the physical machines and between the boards is reduced.
  • the first AVC site allocation strategy you need to consider the resource allocation of the AVC site in front, and ensure that one The AVC site adaptation port resources of the conferences should be on the same physical machine as possible.
  • the IP access and forwarding resources of the conference site and the adaptation resources should be on the same physical machine as possible.
  • the IP access and forwarding resources of a conference AVC site should be on the same physical machine. If there are multiple boards in a hard physical machine, process them in the order of the number of sites that are carried on the board. Ensure that as many sites as possible are allocated on the same board of the same hard physical machine.
  • the hybrid MCU additional resource allocation policy is the same as the AVC conference additional resource allocation policy of the soft MCU, and details are not described herein again.
  • the SVC site requires IP access and forwarding resources.
  • the AVC site requires IP access and forwarding resources, and audio and video adaptation resources.
  • audio decoding resources need to be allocated on the corresponding physical machine.
  • Additional video coding, additional decoding resources need to be allocated on the corresponding physical machine.
  • the physical machine selection order in IP access and forwarding resource allocation is as follows: hardware resource board, media access and processor in general server cluster.
  • the order of selecting a physical machine in the AVC media adaptation resource allocation is as follows: a hardware resource board (a board on which the IP access and forwarding resources are located, a physical machine), other hardware resource boards, and a media access and processing machine in the general server cluster ( The physical machine where the IP access and forwarding resources are located, and the media processor in the general server cluster. Try to make the SVC+AVC hybrid conference preferentially dispatched to the hardware resource board, and use the IP resource board's IP access and forwarding resources to reduce the code stream forwarding between physical machines.
  • Hybrid MCU is not the first site allocation strategy:
  • the basic allocation principle is: use the hardware resource board preferentially, and then use the media access and processor and media processor in the general server cluster.
  • the SVC and AVC venues of the conference should be in the same physical machine as much as possible; in the case of suboptimal, all AVC sites should be on the same physical machine as much as possible; once again, all SVC sites should be in the same physical machine.
  • the number of the sites on the board is sorted in order from the most, so that the site is allocated on the same board of the same hard physical machine.
  • the physical machine is allocated to the site in the following order to provide the conference resources required by the site:
  • AVC site media adaptation resources According to the SVC site IP access and forwarding resources, AVC site media adaptation resources, AVC site IP access and forwarding resources, the physical machines of the three types of resources allocated to the site are sorted in the following order. : Hardware resource board (SVC site IP access and forwarding resources), media access and processor (SVC site IP access and forwarding resources), hardware resource board (AVC adaptation resource), media processor (AVC adaptation resource) ), hardware resource board (AVC site IP access and forwarding resources), media access and processor (AVC site IP access and forwarding resources), further, each physical machine in each of the above types of physical machines follows the slave Sort the order of the venues from most to least;
  • the physical machines that meet the IP access and forwarding resources of the non-first site are sequentially searched and distributed to the non-first site (SVC site) to provide IP access and forwarding. Resources.
  • the conference resource allocation is performed according to the first site allocation policy of the hybrid MCU hybrid conference;
  • the AVC site needs IP access and forwarding resources, and media adaptation resources, first allocate IP access and forwarding resources, and then allocate media adaptation resources. Assign a physical machine to the site in the following order to provide the conference resources required by the site:
  • the physical machines in which the above three types of resources of the site are allocated are sorted in the following order. : hardware resource board (AVC adaptation resource), media processor (AVC adaptation resource), hardware resource board (AVC site IP access and forwarding resource), media access and processor (AVC site IP access and forwarding resources) ), hardware resource board (IP access and forwarding resources of the SVC site), media access and processing machine (IP access and forwarding resources of the SVC site), and further, each physical machine in each of the above types of physical machines follows the slave carrier. Sort the order of the venues from most to least;
  • the physical machine that meets the IP access and forwarding resource requirements and the media adaptation resource requirements of the non-first site is sequentially searched and distributed to the non-first site (SVC site).
  • SVC site non-first site
  • a hardware resource board (AVC adaptation resource) is used as an example, and the hardware resource board (AVC adaptation resource) indicates a hardware resource board where the AVC site media adaptation resource is located.
  • the hardware resource board does not have sufficient IP access and forwarding resources, if the previously allocated sites are all SVC sites, according to the foregoing resource allocation rules, the above-mentioned prior assigned SVCs will be played by the media.
  • the access and processor provide IP access and forwarding resources.
  • the non-first site is an AVC site
  • the AVC site is allocated to the hardware resource board. This feature is applicable to the SVC site in the site where the first-in-come-first-in-the-meeting site is located, but the hardware resource board has no IP access and forwarding resources.
  • the previous SVC site is allocated to the media access and processing machine to prevent subsequent AVC sites from following.
  • the SVC site is also assigned to the media access and processing machine, which causes the audio and video processing of the AVC site to be unable to utilize the hardware resource board. Therefore, the conference resource allocation strategy in this special case is defined, so that the first AVC site can be assigned to Hardware resource board.
  • the hybrid MCU additional resource allocation policy is the same as the additional resource allocation policy of the SVC+AVC conference of the soft MCU, and will not be described here.
  • the physical machine where the IP access and forwarding resources are located refers to a physical machine that provides IP access and forwarding resources allocated for the prior site, and aims to make subsequent allocations as much as possible.
  • the IP access and forwarding resources of the site are also on the same physical machine as the previous site.
  • the hardware resource board is preferentially allocated to provide conference resources for the hybrid conference.
  • the IP access and forwarding resources of each site and the audio and video adaptation resources are preferably allocated on the same board or physical machine, and the RTP stream is minimized on different boards. Forwarding between physical machines; the conferences that require media adaptation resources are preferentially assigned to the hardware resource board, and only the SVC sites that require IP access and forwarding resources are preferentially allocated to the media access and processing machines, thereby ensuring soft and hard media resources.
  • the cost performance through the aforementioned allocation strategy, to achieve optimal allocation and utilization of resources, while enhancing the video effect of the venue to watch each other.
  • the embodiment of the present invention further provides a method for scheduling conference resources.
  • An embodiment of the present invention provides a method for an MCU to perform conference resource scheduling, which is applied to a video conference system, where the MCU includes a general server cluster, the general server cluster is used for media control and processing, and the service network port is provided.
  • the server serves as a media access and processing device, and the media access and processing device has a media adaptation resource and an IP access and forwarding resource, where the conference resource includes an IP access and forwarding resource, and a media adaptation resource.
  • the MCU is connected to multiple sites, and the site type of the first site in the multiple sites is determined;
  • the MCU allocates a first media access and processor to the first site to provide IP access and forwarding resources;
  • the MCU determines that the first media access and the remaining IP access and forwarding resources of the processor meet the requirements of the second site,
  • the first media access and processor is configured to provide IP access and forwarding resources.
  • the method further includes:
  • the MCU determines that the first media access and the remaining IP access and forwarding resources of the processor, and the media adaptation resources meet the requirements of the second site. Allocating the first media access and processor to the second site to provide IP access and forwarding resources, and media adaptation resources.
  • the general server for media control and processing in the general server cluster is used as a media processor, and the media processor is provided with a media adaptation resource.
  • the method further includes: if the second site is an AVC site, the MCU The method further includes: determining that the remaining IP access and forwarding resources of the first media access and the processor meet the requirement of the second site, and the first media access and the remaining media adaptation resources of the processor are not When the requirements of the second site are met, the first media access and processor is allocated to the second site to provide IP access and forwarding resources, and the first media processor is allocated to provide media adaptation resources.
  • the MCU determines that the first media access and the remaining IP of the processor are connected.
  • the second site is allocated a second media access and processor to provide IP access and forwarding resources, and media adaptation. Resources.
  • the general server for media control and processing in the general server cluster is used as a media processor, and the media processor is provided with a media adaptation resource, and the method further includes: if the first site is an AVC site, when the When the first media access and the processor meet the resource requirements of the first site, the MCU allocates the first media access and processor to the AVC site, when the general server cluster does not exist at the same time When the MCU meets the media access and processing resources of the first site, A media processor that accesses and processes the processor to meet its media adaptation resource requirements.
  • the method further includes allocating additional audio decoding resources and additional video codec resources on the plurality of general servers if the AVC sites in the plurality of sites are allocated to a plurality of general servers.
  • the MCU receives the conference access request message sent by the multiple sites, and determines the site type of the multiple sites according to the conference access request message; or the MCU receives the notification message sent by the SMC, where the notification is sent.
  • the message carries the site type of the multiple sites connected to the MCU.
  • the method further includes: determining, by the MCU, the conference resources required by the multiple sites.
  • the embodiment of the present invention provides another method for the MCU to perform conference resource scheduling, which is applied to a video conference system, where the MCU includes a general server cluster and a hardware resource board, where the general server cluster is used for media control and processing, and provides A general-purpose server of the service network port serves as a media access and processing machine, and the conference resource includes an IP access and forwarding resource, and a media adaptation resource, where the media access and processor and the hardware resource board have media suitable With resources and IP access and forwarding resources, the method includes:
  • the MCU is connected to multiple sites, and the site type of the first site in the multiple sites is determined;
  • the MCU allocates the first site to the first site.
  • the first hardware resource board provides the IP access and forwarding resources.
  • the MCU allocates the first Hardware resource board to provide media adaptation resources.
  • the MCU allocates another hardware resource board to provide media adaptation resources for the first site.
  • the MCU When the MCU does not have the first hardware resource board that meets the IP access and forwarding resource requirements of the first site, the MCU allocates the first site to meet the IP access of the first site. First media access forwarding resource requirements With the processor.
  • a universal server for media control and processing in the general server cluster is used as a media processor, the media processor is provided with a media adaptation resource, and the method further includes: when the hardware resource board and the media access in the MCU When the processor does not meet the media adaptation resource requirement of the second site in the multiple sites, the MCU allocates a media adaptation resource to the second site on the media processor.
  • the MCU allocates an IP access and forwarding resource and a media adaptation resource to the second site on the first hardware resource board.
  • the MCU is the first The venue allocates the first media access and processor
  • the MCU allocates the IP of the first site to the first site.
  • the first hardware resource board that accesses and forwards resource requirements.
  • the MCU is The other media access and processor are allocated to other SVC sites in the multiple sites.
  • the MCU is the multiple The other SVC sites in the site allocate the first hardware resource board.
  • the MCU is the AVC in the multiple sites on the multiple general servers or multiple hardware resource boards.
  • the venue allocates additional audio decoding resources and additional video codec resources.
  • the MCU receives the conference access request message sent by the multiple sites, and determines the site type of the multiple sites according to the conference access request message; or
  • the MCU receives the notification message sent by the SMC, where the notification message carries the site type of the multiple sites connected to the MCU.
  • the method further includes: determining, by the MCU, the conference resources required by the multiple sites.
  • FIG. 2 and FIG. 3 are schematic diagrams showing hardware structures of a soft MCU and a hybrid MCU according to an embodiment of the present invention. Shown based on the above FIG. 2 or FIG. 3 a hardware structure, the processor executes the policies in the foregoing embodiments, and allocates conference resources to the conference site of the access conference, where the policy may be embodied in the form of a software product, where the computer software product may be stored in a storage medium.
  • ROM/RAM read-only memory
  • diskette diskette
  • optical disk etc.
  • instructions for causing a computer device which may be a personal computer, a resource management server, or a network communication device such as a media gateway, etc.
  • a computer device which may be a personal computer, a resource management server, or a network communication device such as a media gateway, etc.
  • a computer device which may be a personal computer, a resource management server, or a network communication device such as a media gateway, etc.

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Abstract

本发明提供一种会议资源调度的方法和MCU。在一种场景下，所述MCU为通用服务器集群构成的软MCU，为与自身相连的多个会场分配会议资源，对于SVC会场，所述MCU优先分配媒体接入与处理机为所述SVC会场提供IP接入与转发资源，在后续会场的分配策略中，优选地，将属于同一个会议的会场分配到同一个物理机，减少会议中的码流在不同物理机之间的转发。

Description

一种会议资源调度的方法及装置 技术领域
本发明涉及通信技术领域，尤其是涉及一种会议资源调度的方法及装置。
背景技术
在视频会议系统中，多点控制单元(multipoint control unit，MCU)负责会议中音视频数据的转发与转码处理,具体的，MCU可以通过专用的DSP处理器或媒体加速的专用集成电路(application-specific integrated circuit，ASIC)芯片来完成音视频的编码与解码处理。在跨MCU场景下视频会议中，不同MCU下的两个子会议如果需要互通，则需要通过在两个MCU之间建立级联通道来实现不同MCU之间的会场互通,支持的级联通道数量限制了两个子会议之间能同时观看的源数量，源可以是每个会场，也可以是多个会场组成的多画面。
随着虚拟化技术的不断进步，出现了由单台物理服务器构成的软MCU。由于受到物理服务器处理能力的限制，单台物理服务器构成的软MCU单机的容量都较少，导致无法支持目前全适配、每端口多画面的大容量会议。为了解决软化后MCU容量小的问题，提出了软MCU媒体处理机集群的思路，由多台物理机集群构成软MCU。在多台物理机集群中包括负责主控处理的物理机，负责信令处理的物理机(容量较小时可以与媒体机合机部署)，负责音视频处理的媒体机，其中媒体机支持多台进行集群。多台物理机集群构成的软MCU对上层业务系统作为单一的MCU进行呈现，业务系统进行资源调度时将业务调度到软MCU，软MCU自身负责对业务在多台物理机之间进行分配。
在视频会议中，不同的会场可能具备不同的会场能力和观看要求，SVC(Scalable Video Coding,可分级的视频编码)技术通过分层编码技术，编码各种能力的流用于满足会议中不同能力会场的观看要求，MCU只需要根据会场能力进行相应的流转发，不在需要进行视频的转码处理，从而提高整个MCU的媒体端口处理能力。根据会场是否能支持SVC，把会场分为二类，一类为SVC会场(SVC会场同时具备高级视频编码(advanced video coding，AVC)能力)，一类为AVC会场(AVC会场不支持SVC能力)。上述两种会场构成的会议相应的分为分为三种类型:SVC会议：所有会场都为SVC会场；AVC会议：所有会场都为AVC会场；SVC+AVC混合会议：部分会场为SVC会场，部分会场为AVC会场。
视频会议系统中的业务管理中心(Service Management Center，SMC)负责资源的统一管理以及多台MCU上的资源调度，当采用软MCU为上述各类会议和会场提供服务时，SMC无法针 对上述各种类型的会议和会场提供差异化的资源调度策略，无法实现高质量的视频会议效果。
发明内容
本发明的目的在于提供一种会议资源调度的方法及装置，以解决现有技术中无法针对各种类型的会议和会场提供差异化的资源调度策略的问题。
第一方面，本发明实施例提供了一种MCU，应用于视频会议系统，所述MCU包括通用服务器集群，所述通用服务器集群中用于媒体控制与处理，以及提供业务网口的通用服务器作为媒体接入与处理机；所述媒体接入与处理机具备媒体适配资源以及IP接入与转发资源；
所述MCU与多个会场相连，所述MCU用于为所述多个会场分配会议资源，所述会议资源包括IP接入与转发资源，以及媒体适配资源；
所述MCU用于确定第一会场的会场类型；
若所述第一会场为SVC会场，所述MCU还用于为所述第一会场分配第一媒体接入与处理机以提供IP接入与转发资源；
所述MCU还用于确定所述多个会场中的第二会场的会场类型；
若所述第二会场为SVC会场，所述MCU还用于确定所述第一媒体接入与处理机剩余的IP接入与转发资源满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源。
结合第一方面，在第一方面的第一种可能的实施方式中，
若所述第二会场为AVC会场，所述MCU还用于在确定所述第一媒体接入与处理机剩余的IP接入与转发资源，以及媒体适配资源均满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源，以及媒体适配资源。
结合第一方面或第一方面第一种可能的实施方式，在第二种可能的实施方式中，
所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，
若所述第二会场为AVC会场，所述MCU还用于在确定所述第一媒体接入与处理机剩余的IP接入与转发资源满足所述第二会场的需求，且所述第一媒体接入与处理机剩余的媒体适配资源不满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源，分配第一媒体处理机以提供媒体适配资源。
结合第一方面、第一方面第一种或第一方面第二种可能的实施方式，在第三种可能的实施方式中，若所述第二会场为AVC会场，所述MCU还用于在确定所述第一媒体接入与处理机 剩余的IP接入与转发资源，以及媒体适配资源均不满足所述第二会场的需求时，为所述第二会场分配第二媒体接入与处理机以提供IP接入与转发资源，以及媒体适配资源。
结合第一方面，在第四种可能的实施方式中，所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，
若所述第一会场为AVC会场，当所述第一媒体接入与处理机满足所述第一会场的资源需求时，所述MCU还用于将所述第一媒体接入与处理机分配给所述AVC会场，当所述通用服务器集群中不存在同时满足所述第一会场的IP接入与转发资源需求以及媒体适配资源需求的媒体接入与处理机时，所述MCU还用于为所述AVC会场分别分配满足其IP接入与转发资源需求的媒体接入与处理机、满足其媒体适配资源需求的媒体处理机。
结合第一方面，在第一方面第五种可能的实施方式中，若所述多个会场中的AVC会场分配给多个通用服务器时，所述MCU还用于在所述多个通用服务器上为所述多个会场中的AVC会场分配附加的音频解码资源和附加的视频编解码资源。
结合第一方面，在第一方面第六种可能的实施方式中，
所述MCU还用于接收所述多个会场发送的会议接入请求消息，根据所述会议接入请求消息确定所述多个会场的会场类型；或者，
所述MCU还用于接收SMC发送的通知消息，所述通知消息中携带与所述MCU相连的所述多个会场的会场类型。
结合第一方面，在第一方面第七种可能的实施方式中，
所述MCU，还用于确定所述多个会场所需的会议资源。
第二方面，本发明实施例还提供了另一种MCU，应用于视频会议系统，所述MCU包括通用服务器集群和硬件资源板，所述通用服务器集群中用于媒体控制与处理，以及提供业务网口的通用服务器作为媒体接入与处理机，所述媒体接入与处理机和所述硬件资源板均具备媒体适配资源以及IP接入与转发资源；
所述MCU与多个会场终端相连，所述MCU用于为所述多个会场分配会议资源，所述会议资源包括IP接入与转发资源，以及媒体适配资源；
所述MCU用于确定第一会场的会场类型；
若所述第一会场为AVC会场，当所述MCU中存在满足所述第一会场的IP接入与转发资源需求的第一硬件资源板时，所述MCU还用于为所述第一会场分配所述第一硬件资源板以提供IP接入与转发资源，当所述第一硬件资源板满足所述第一会场的媒体适配资源需求时，所述MCU还用于为所述第一会场分配所述第一硬件资源板以提供媒体适配资源。
结合第二方面，在第二方面的第一种可能的实施方式中，
当所述第一硬件资源板不满足所述第一会场的媒体适配资源需求时，所述MCU还用于分配其他硬件资源板为所述第一会场提供媒体适配资源。
结合第二方面，在第二方面的第二种可能的实施方式中，
当所述MCU中不存在满足所述第一会场的IP接入与转发资源需求的第一硬件资源板时，所述MCU还用于为所述第一会场分配满足所述第一会场的IP接入与转发资源需求的第一媒体接入与处理机。
结合第二方面，在第二方面的第三种可能的实施方式中，所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机；所述媒体处理机具备媒体适配资源；
当所述MCU中的硬件资源板以及媒体接入与处理机均不满足所述多个会场中的第二会场的媒体适配资源需求时，所述MCU还用于在所述媒体处理机上为所述第二会场分配媒体适配资源。
结合第二方面，在第二方面的第四种可能的实施方式中，
所述MCU还用于在所述第一硬件资源板上为所述多个会场中的第二会场分配IP接入与转发资源，以及媒体适配资源。
结合第二方面，在第二方面的第五种可能的实施方式中，
若所述第一会场为SVC会场，当所述通用服务器集群中存在第一媒体接入与处理机满足所述第一会场的IP接入与转发资源需求时，所述MCU还用于为所述第一会场分配第一媒体接入与处理机；
当所述通用服务器集群中不存在满足所述第一会场的IP接入与转发资源需求的媒体接入与处理机时，所述MCU还用于为所述第一会场分配满足所述第一会场的IP接入与转发资源需求的第一硬件资源板。
结合第二方面的第五种可能的实施方式，在第六种可能的实施方式中，
若所述第一会场为SVC会场，当所述第一媒体接入与处理机上的剩余资源满足所述多个会场中的其他SVC会场的IP接入与转发资源需求时，所述MCU还用于为所述多个会场中的其他SVC会场分配所述第一媒体接入与处理机。
结合第二方面的第五种可能的实施方式，在第七种可能的实施方式中，
若所述第一会场为SVC会场，当所述第一硬件资源板上的剩余资源满足所述多个会场中的其他SVC会场的IP接入与转发资源需求时，所述MCU还用于为所述多个会场中的其他SVC会场分配所述第一硬件资源板。
结合第二方面，在第八种可能的实施方式中，若所述多个会场中的AVC会场分配给多个 通用服务器或多个硬件资源板时，在所述多个通用服务器或多个硬件资源板上分配附加的音频解码资源和附加的视频编解码资源。
结合第二方面，在第九种可能的实施方式中，
所述MCU还用于接收所述多个会场发送的会议接入请求消息，根据所述会议接入请求消息确定所述多个会场的会场类型；或者，
所述MCU还用于接收SMC发送的通知消息，所述通知消息中携带与所述MCU相连的所述多个会场的会场类型。
结合第二方面，在第十种可能的实施方式中，
所述MCU，还用于确定所述多个会场所需的会议资源。
第三方面，本发明实施例提供了一种MCU执行会议资源调度的方法，应用于视频会议系统，所述MCU包括通用服务器集群，所述通用服务器集群中用于媒体控制与处理，以及提供业务网口的通用服务器作为媒体接入与处理机，所述媒体接入与处理机具备媒体适配资源以及IP接入与转发资源，所述会议资源包括IP接入与转发资源，以及媒体适配资源，
所述MCU与多个会场相连，确定所述多个会场中的第一会场的会场类型；
若所述第一会场为SVC会场，所述MCU为所述第一会场分配第一媒体接入与处理机以提供IP接入与转发资源；
所述MCU确定所述多个会场中的第二会场的会场类型；
若所述第二会场为SVC会场，所述MCU确定所述第一媒体接入与处理机剩余的IP接入与转发资源满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源。
结合第三方面，在第三方面第一种可能的实施方式中，所述方法还包括：
若所述第二会场为AVC会场，所述MCU在确定所述第一媒体接入与处理机剩余的IP接入与转发资源，以及媒体适配资源均满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源，以及媒体适配资源。
结合第三方面或第三方面第一种可能的实施方式，在第三方面第二种可能的实施方式中，所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，所述方法还包括：
若所述第二会场为AVC会场，所述MCU还用于在确定所述第一媒体接入与处理机剩余的IP接入与转发资源满足所述第二会场的需求，且所述第一媒体接入与处理机剩余的媒体适配资源不满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供 IP接入与转发资源，分配第一媒体处理机以提供媒体适配资源。
结合第三方面、第三方面第一种可能的实现方式或第三方面第二种可能的实现方式，在第三方面第三种可能的实现方式中，若所述第二会场为AVC会场，所述MCU在确定所述第一媒体接入与处理机剩余的IP接入与转发资源，以及媒体适配资源均不满足所述第二会场的需求时，为所述第二会场分配第二媒体接入与处理机以提供IP接入与转发资源，以及媒体适配资源。
所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，所述方法还包括：
结合第三方面，在第三方面第四种可能的实施方式中，所述方法还包括：
若所述第一会场为AVC会场，当所述第一媒体接入与处理机满足所述第一会场的资源需求时，所述MCU将所述第一媒体接入与处理机分配给所述AVC会场，当所述通用服务器集群中不存在同时满足所述第一会场的IP接入与转发资源需求以及媒体适配资源需求的媒体接入与处理机时，所述MCU为所述AVC会场分别分配满足其IP接入与转发资源需求的媒体接入与处理机、满足其媒体适配资源需求的媒体处理机。
结合第三方面，在第三方面第五种可能的实施方式中，所述方法还包括：
若所述多个会场中的AVC会场分配给多个通用服务器时，在所述多个通用服务器上分配附加的音频解码资源和附加的视频编解码资源。
结合第三方面，在第三方面第六种可能的实施方式中，所述方法还包括：
所述MCU接收所述多个会场发送的会议接入请求消息，根据所述会议接入请求消息确定所述多个会场的会场类型；或者，
所述MCU接收SMC发送的通知消息，所述通知消息中携带与所述MCU相连的所述多个会场的会场类型。
结合第三方面，在第三方面第七种可能的实施方式中，在MCU为所述多个会场分配会议资源之前，所述方法还包括：
所述MCU确定所述多个会场所需的会议资源。
第四方面，本发明实施例还提供了另一种MCU执行会议资源调度的方法，应用于视频会议系统，所述MCU包括通用服务器集群和硬件资源板，所述通用服务器集群中用于媒体控制与处理，以及提供业务网口的通用服务器作为媒体接入与处理机，所述会议资源包括IP接入与转发资源，以及媒体适配资源，所述媒体接入与处理机和所述硬件资源板均具备媒体适配资源以及IP接入与转发资源，所述方法包括：
所述MCU与多个会场相连，确定所述多个会场中的第一会场的会场类型；
若所述第一会场为AVC会场，当所述MCU中存在满足所述第一会场的IP接入与转发资源需求的第一硬件资源板时，所述MCU为所述第一会场分配所述第一硬件资源板以提供IP接入与转发资源，当所述第一硬件资源板满足所述第一会场的媒体适配资源需求时，所述MCU为所述第一会场分配所述第一硬件资源板以提供媒体适配资源。
结合第四方面，在第四方面第一种可能的实施方式中，所述方法还包括：
当所述第一硬件资源板不满足所述第一会场的媒体适配资源需求时，所述MCU分配其他硬件资源板为所述第一会场提供媒体适配资源。
结合第四方面，在第四方面第二种可能的实施方式中，所述方法还包括：
当所述MCU中不存在满足所述第一会场的IP接入与转发资源需求的第一硬件资源板时，所述MCU为所述第一会场分配满足所述第一会场的IP接入与转发资源需求的第一媒体接入与处理机。
结合第四方面，在第四方面第三种可能的实施方式中，所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，所述方法还包括：
当所述MCU中的硬件资源板以及媒体接入与处理机均不满足所述多个会场中的第二会场的媒体适配资源需求时，所述MCU在所述媒体处理机上为所述第二会场分配媒体适配资源。
结合第四方面，在第四方面第四种可能的实施方式中，所述MCU在所述第一硬件资源板上为所述第二会场分配IP接入与转发资源，以及媒体适配资源。
结合第四方面，在第四方面第五种可能的实施方式中，所述方法还包括：
若所述第一会场为SVC会场，当所述通用服务器集群中存在第一媒体接入与处理机满足所述第一会场的IP接入与转发资源需求时，所述MCU为所述第一会场分配第一媒体接入与处理机；
当所述通用服务器集群中不存在满足所述第一会场的IP接入与转发资源需求的媒体接入与处理机时，所述MCU为所述第一会场分配满足所述第一会场的IP接入与转发资源需求的第一硬件资源板。
结合第四方面第五种可能的实施方式，在第四方面第六种可能的实施方式中，所述方法还包括：
若所述第一会场为SVC会场，当所述第一媒体接入与处理机上的剩余资源满足所述多个会场中的其他SVC会场的IP接入与转发资源需求时，所述MCU为所述多个会场中的其他SVC会场分配所述第一媒体接入与处理机。
结合第四方面第五种可能的实施方式，在第四方面第七种可能的实施方式中，所述方法 还包括：若所述第一会场为SVC会场，当所述第一硬件资源板上的剩余资源满足所述多个会场中的其他SVC会场的IP接入与转发资源需求时，所述MCU为所述多个会场中的其他SVC会场分配所述第一硬件资源板。
结合第四方面，在第四方面第八种可能的实施方式中，所述方法还包括：
若所述多个会场中的AVC会场分配给多个通用服务器或多个硬件资源板时，所述MCU在所述多个通用服务器或多个硬件资源板上为所述多个会场中的AVC会场分配附加的音频解码资源和附加的视频编解码资源。
结合第四方面，在第四方面第九种可能的实施方式中，所述方法还包括：
所述MCU接收所述多个会场发送的会议接入请求消息，根据所述会议接入请求消息确定所述多个会场的会场类型；或者，
所述MCU接收SMC发送的通知消息，所述通知消息中携带与所述MCU相连的所述多个会场的会场类型。
结合第四方面，在第四方面第十种可能的实施方式中，在MCU为所述多个会场分配会议资源之前，所述方法还包括：
所述MCU确定所述多个会场所需的会议资源。
本发明实施例提供了一种会议资源调度的方法和MCU，所述MCU为通用服务器集群构成的软MCU，所述MCU为与自身相连的多个会场分配会议资源，对于SVC会场，所述MCU优先分配媒体接入与处理机为所述SVC会场提供IP接入与转发资源，在后续会场的分配策略中，优选地，将属于同一个会议的会场分配到同一个物理机，减少会议中的码流在不同物理机之间的转发。
本发明实施例提供了另一种会议资源调度的方法和MCU，所述MCU为通用服务器集群和硬件资源板构成的混合MCU，所述MCU为与自身相连的多个会场分配会议资源，对于SVC会场，所述MCU优先分配媒体接入与处理机为所述SVC会场提供IP接入与转发资源，对于AVC会场，所述MCU优先分配硬件资源板为所述AVC会场提供IP接入与转发资源，提供了较优的资源分配策略，使得需要媒体适配资源的AVC会场尽量分配到硬件资源板上，提高媒体处理效率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于 本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的一种视频会议系统的连接关系示意图；
图2是本发明实施例提供的一种软MCU的硬件结构示意图；
图3是本发明实施例提供的一种混合MCU的硬件结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图1所示，为本发明实施例提供的一种视频会议系统的连接关系示意图。该视频会议系统中,SMC具备会议管理功能，具体包括MCU资源池管理、会议召集、会议控制，以及历史信息查看等等。在召集会议时，SMC将会议终端接入到对应的MCU上，并对会议进行控制。具体的，会场控制至少包括以下操作：删除会场，呼叫/挂断，广播/取消广播，观看，静音/取消静音，闭音/取消闭音，音频环回/视频环回/取消环回，打开/关闭会场视频，设置音量，查看会场详细信息，查看会场能力，以及查看会场网络丢包数据等等。
当SMC收会议预约请求或即时会议请求时，根据会议要求、与会终端的分布情况和网络资源的状况等等因素，SMC进行资源分配和会议调度，将会议分配在对应的MCU上，具体的资源分配过程和会议调度过程采用现有技术实现，本发明实施例并不进行限定。在SMC将需要使用的会议资源分配到指定的MCU上以后，MCU内部的资源分配与调度需要由MCU完成的，本发明实施例给出了MCU依据会场类型进行资源的调度方法。
为使得本发明方案更清晰以及易于理解，本发明实施例首先对如下概念进行介绍：
软MCU为多台通用服务器集群虚拟化部署构成；
混合MCU包括虚拟化部署的通用服务器集群，同时还包括专用的硬件资源板。所述混合MCU中专用的硬件资源板可以根据需求进行配置硬件资源板的数量和规格,本发明对此并不进行限定。
相对专用的媒体资源板，例如，数字信号处理器(digital signal processor，DSP)、音视频加速的ASIC等，通用服务器在音视频编码、解码这类媒体业务处理上的性能较低。因此，将通用服务器和专用硬件的媒体资源板相结合构成混合MCU，其中，通用服务器可以优先用于系统的控制和信令的处理，专用硬件的媒体资源板优先用于媒体的编码与解码处理。
媒体处理机，具体是指部署媒体控制与媒体处理的通用服务器，完成单物理机上的音视 频控制与处理，可以根据需要只部署音频、只部署视频、或同时部署音频与视频。媒体处理机对外不提供业务网口，不直接与终端会场交互RTP码流；
媒体接入与处理机，具体上述媒体处理机的功能，同时对外提供业务网口，与终端会场进行RTP码流的交互。
IP接入与转发资源：该资源用于完成会场RTP流的IP接入与转发处理，每个接入到MCU的会场都需要分配该资源，该资源由媒体接入与处理机能提供；
媒体适配资源：用于音视频的编解码处理，当会场数据需要进行编解码处理时才需要媒体适配资源，对于纯转发功能的会场则不需要分配该资源。
在本发明实施例中，物理机是指通用服务器或硬件资源板。
本发明实施例提供的资源调度的方法，给出了针对集群的软MCU和/或混合MCU上各种不同类型会议(含SVC会议、AVC会议、SVC+AVC会议)的资源分配策略，具体包括，针对第一个会场的分配策略，以及非第一个会场的分配策略。分配原则概括如下：
在进行资源分配时，会场的IP接入与转发资源与媒体适配资源优先分配在同一单板或物理机上，以尽量减少RTP码流在不同单板、不同物理机之间的转发所带来的网络传输资源消耗；
一个会议中的多个会场，尽量分配在同一单板或同一物理机上，以减少会议跨单板、跨物理机的数据转发，避免跨单板、跨物理机带来的附加资源消耗；
需要音视频编解码等媒体适配资源的会场优先分配到硬媒体机上，只需要转发资源的会场优先分配到软媒体机上，从而实现通用服务器和硬件资源板的有效利用。
本发明实施例通过上述分配原则，针对支持集群的软MCU和/或混合MCU，提供媒体处理所需要的IP接入与转发资源，以及媒体适配资源的优化分配策略，达到资源的合理分配与利用，同时提升会场相互观看的视频效果。
如图1所示，为本发明实施例提供的一种资源调度的视频会议系统结构示意图，该资源调度的系统包括SMC、混合MCU、软MCU、AVC终端，以及SVC终端。根据上述说明,图1所示的系统对应的会议为SVC+AVC的混合会议。需要说明的是，图1所示的系统结果仅为本方面实施例的一个举例，本领域技术人员可以理解的是，视频会议系统可以仅包括软MCU或混合MCN，也可以同时包括软MCU和混合MCU；一个会议中可以仅包含SVC会场或AVC会场，也可以同时包括SVC会场和AVC会场。对上述各种会议的组织结构，本发明实施例并不进行限定，本发明实施例针对单个MCU为其所属的会场差异化的分配所需资源。
实施例一
本发明实施例提供的一种多点控制单元MCU，应用于视频会议系统，所述MCU包括通用 服务器集群，所述通用服务器集群中用于媒体控制与处理，以及提供业务网口的通用服务器作为媒体接入与处理机；所述媒体接入与处理机具备媒体适配资源以及IP接入与转发资源；
所述MCU与多个会场相连，所述MCU用于为所述多个会场分配会议资源，所述会议资源包括IP接入与转发资源，以及媒体适配资源；
所述MCU用于确定第一会场的会场类型；
若所述第一会场为SVC会场，所述MCU还用于为所述第一会场分配第一媒体接入与处理机以提供IP接入与转发资源；
所述MCU还用于确定所述多个会场中的第二会场的会场类型；
若所述第二会场为SVC会场，所述MCU还用于确定所述第一媒体接入与处理机剩余的IP接入与转发资源满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源。
实施例一所述的MCU由通用服务器构成，因此为软MCU。在实施例一对应的会议中，包含多个会场，会场可以为SVC会场或AVC会场，在MCU为所述多个会场分配会议资源时，第一个被分配资源的会场作为第一会场，具体的，所述第一会场可以为第一个向所述MCU请求接入的会场。由于SVC会场只需要IP接入与转发资源，不需要媒体适配资源，因此MCU为SVC会场分配媒体接入与处理机，一个会议的SVC会场尽量分配到同一个媒体接入与处理机，从而减少会议中跨物理机的数据转发。当第一会场为SVC会场时，所述MCU为所述第一会场分配具有最多IP接入与转发资源的媒体接入与处理机。
若所述第二会场为AVC会场，所述MCU还用于在确定所述第一媒体接入与处理机剩余的IP接入与转发资源，以及媒体适配资源均满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源，以及媒体适配资源。
AVC会场需要IP接入与转发资源和媒体适配资源，当分配给第一会场的第一媒体接入与处理机满足后续的AVC会场的IP接入与转发资源需求和媒体适配资源需求时，将所述分配给第一会场的第一媒体接入与处理机继续分配给后续的AVC会场，从而尽量使得尽可能多的会场处理同一个物理机上。
实施例一所述的构成所述MCU的通用服务器还包括媒体处理机，所述媒体处理机用于媒体控制与处理，具备媒体适配资源。
若所述第二会场为AVC会场，所述MCU还用于在确定所述第一媒体接入与处理机剩余的IP接入与转发资源满足所述第二会场的需求，且所述第一媒体接入与处理机剩余的媒体适配资源不满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源，分配第一媒体处理机以提供媒体适配资源。
若所述第二会场为AVC会场，所述MCU还用于在确定所述第一媒体接入与处理机剩余的IP接入与转发资源，以及媒体适配资源均不满足所述第二会场的需求时，为所述第二会场分配第二媒体接入与处理机以提供IP接入与转发资源，以及媒体适配资源。
当分配给第一会场的第一媒体接入与处理机满足后续AVC会场的IP接入与转发资源需求，但不满足后续AVC会场的媒体适配资源需求时，可以为后续的AVC会场分配媒体处理机以提供媒体适配资源。当分配给第一会场的第一媒体接入和处理机剩余的IP接入与转发资源和媒体适配资源均不能满足后续AVC会场的需求时，可以为后续AVC会场重新分配媒体接入与处理机。
若所述第一会场为AVC会场，当所述第一媒体接入与处理机满足所述第一会场的资源需求时，所述MCU还用于将所述第一媒体接入与处理机分配给所述AVC会场，当所述通用服务器集群中不存在同时满足所述第一会场的IP接入与转发资源需求以及媒体适配资源需求的媒体接入与处理机时，所述MCU还用于为所述AVC会场分别分配满足其IP接入与转发资源需求的媒体接入与处理机、满足其媒体适配资源需求的媒体处理机。
当MCU分配资源的第一会场是AVC会场时，由于AVC会场需要IP接入与转发资源，以及媒体适配资源，因此，优先选择同时满足上述两种资源需求，且剩余资源最大的媒体接入与处理机，当不存在可以同时满足上述两种资源需求的媒体接入与处理机时，则MCU为AVC会场媒体接入与处理机以及媒体处理机，分别为所述AVC会场提供IP接入与转发资源，以及媒体适配资源。
在上述场景下，一个会议中的AVC会场可能分配了多个物理机，所述多个物理机之间存在媒体资源传输需求，因此，实施例一中，若所述多个会场中的AVC会场分配给多个通用服务器时，所述MCU还用于在所述多个通用服务器上为所述多个会场中的AVC会场分配附加的音频解码资源和附加的视频编解码资源。
本发明实施例中，MCU需要确定其下的会场的会场类型，以及各个会场的资源需求。需要说明的是，可以采用现有技术中的各种可能的实现方式来获得上述会场类型和资源需求，本发明实施例对此并不进行限定。具体的，会议管理中心SMC可以向MCU发送通知消息，告知其下的各会场的会场类型和资源需求；MCU也可以在其下的会场进行会议接入时获得各会场的会场类型和资源需求。
本发明实施例一给出了软MCU为SVC会场和AVC会场分配资源的策略，优先地，尽可能地将会议中的各个SVC会场和AVC会场分配到通用服务器集群中的同一个媒体接入与处理机，当一个媒体接入与处理机不满足AVC会场的媒体适配资源需求时，进一步的为AVC会场分配媒体处理机以提供媒体适配资源。当会议中的AVC会场被分配到多个物理机上时，在上述多个物理 机上进一步的分配附加的音频解码资源，以及附加的视频编码、解码资源。通过实施例一种给出的资源分配策略，使得一个会议中的各个会场尽可能的分配到最少的物理机上，减少了会议中的码流在不同物理机间的转发，降低了网络负载，提高了会议效果。
实施例二
本发明实施例还提供了另一种MCU，应用于视频会议系统，所述MCU包括通用服务器集群和硬件资源板，所述通用服务器集群中用于媒体控制与处理，以及提供业务网口的通用服务器作为媒体接入与处理机，所述媒体接入与处理机和所述硬件资源板均具备媒体适配资源以及IP接入与转发资源；
所述MCU与多个会场终端相连，所述MCU用于为所述多个会场分配会议资源，所述会议资源包括IP接入与转发资源，以及媒体适配资源；
所述MCU用于确定第一会场的会场类型；
若所述第一会场为AVC会场，当所述MCU中存在满足所述第一会场的IP接入与转发资源需求的第一硬件资源板时，所述MCU还用于为所述第一会场分配所述第一硬件资源板以提供IP接入与转发资源，当所述第一硬件资源板满足所述第一会场的媒体适配资源需求时，所述MCU还用于为所述第一会场分配所述第一硬件资源板以提供媒体适配资源。
所述MCU还用于在所述第一硬件资源板上为所述多个会场中的第二会场分配IP接入与转发资源，以及媒体适配资源。
本发明实施例二中的所述MCU由通用服务器集群和硬件资源板构成，为混合MCU。所述混合MCU为其下的各会场分配资源时，优先为AVC会场分配硬件资源板，即利用硬件资源板的音视频处理能力提高音视频处理效率。进一步的，所述混合MCU选择空闲资源最多的硬件资源板为所述第一会场提供会议资源，当所述硬件资源板上存在多个单板时，所述混合MCU可以为所述第一会场选择空闲资源最多的单板，将后续的会场尽可能的分配到为第一会场分配的第一硬件资源板上或者第一硬件资源板上的单板上，从而尽可能的减少会议中的码流在单板间或物理机间的转发。
进一步的，当所述第一硬件资源板不满足所述第一会场的媒体适配资源需求时，所述MCU还用于分配其他硬件资源板为所述第一会场提供媒体适配资源。
进一步的，当所述MCU中不存在满足所述第一会场的IP接入与转发资源需求的第一硬件资源板时，所述MCU还用于为所述第一会场分配满足所述第一会场的IP接入与转发资源需求的第一媒体接入与处理机。在硬件资源板上的资源不足时，混合MCU选择通用服务器集群中IP接入与转发资源最多的媒体接入与处理机为所述第一会场提供资源。
所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处 理机具备媒体适配资源，当所述MCU中的硬件资源板以及媒体接入与处理机均不满足所述多个会场中的第二会场的媒体适配资源需求时，所述MCU还用于在所述媒体处理机上为所述第二会场分配媒体适配资源。
当第一会场为SVC会场时，当所述通用服务器集群中存在第一媒体接入与处理机满足所述第一会场的IP接入与转发资源需求时，所述MCU还用于为所述第一会场分配第一媒体接入与处理机；
当所述通用服务器集群中不存在满足所述第一会场的IP接入与转发资源需求的媒体接入与处理机时，所述MCU还用于为所述第一会场分配满足所述第一会场的IP接入与转发资源需求的第一硬件资源板。
若所述第一会场为SVC会场，当所述第一媒体接入与处理机上的剩余资源满足所述多个会场中的其他SVC会场的IP接入与转发资源需求时，所述MCU还用于为所述多个会场中的其他SVC会场分配所述第一媒体接入与处理机。
在实施例二中，由于SVC会场只需要IP接入与转发资源，因此，优先的，将SVC会场分配到通用服务器集群中的媒体接入与处理机上，从而可以尽量地将混合MCU中的硬件资源板中的资源遗留给AVC会场，利用硬件资源板的音视频处理能力为AVC会场提供高效的音视频处理。
与实施例一类似地，若所述多个会场中的AVC会场分配给多个通用服务器或多个硬件资源板时，所述MCU在所述多个通用服务器或多个硬件资源板上为所述AVC会场分配附加的音频解码资源和附加的视频编解码资源。
MCU需要确定其下的会场的会场类型，以及各个会场的资源需求。需要说明的是，可以采用现有技术中的各种可能的实现方式来获得上述会场类型和资源需求，本发明实施例对此并不进行限定。具体的，会议管理中心SMC可以向MCU发送通知消息，告知其下的各会场的会场类型和资源需求；MCU也可以在其下的会场进行会议接入时获得各会场的会场类型和资源需求。
本发明实施例二公开的混合MCU进行会议资源调度的策略，会议中的SVC会场尽可能的分配到通用服务器集群中的媒体接入与处理机，最优的，会议中的所有SVC会场的IP接入与转发资源由同一媒体接入与处理机提供。将会议中的AVC会场分配到硬件资源板，使得AVC会场的IP接入与转发资源，以及媒体适配资源在同一硬件资源板上，最优的，会议中的所有SVC会场的上述两种资源均由同一个硬件资源板上的同一单板提供。进一步的，使得AVC会场的IP接入与转发资源，以及SVC会场的IP接入与转发资源在同一物理机上。通过实施例二公开的上述会议资源调度的策略，提高通用服务器和硬件资源板的利用效率。
实施例三
本发明实施例三提供了一种软MCU的资源分配过程，简述如下：
1.判断会议类型，所述会议类型包括SVC会议、AVC会议、SVC+AVC会议，当所述会议类型为SVC会议时，按照SVC会议资源分配策略进行处理；当所述会议类型为AVC会议时，按照AVC会议资源分配策略进行处理；当所述会议类型为SVC+AVC会议时，则按照SVC+AVC会议资源分配策略进行处理；
2.1软MCU进行SVC会议资源分配过程(所有会场均为SVC会场)：
a.当会场为会议的第一个会场时，按照第一个会场分配策略进行IP接入与转发资源的分配；
b.对于会议的非第一个会场，按照非第一个会场分配策略进行IP接入与转发资源的分配；
2.2软MCU进行AVC会议资源分配过程(所有会场均为AVC会场)：
a.对于会议的第一个会场，按照第一个会场分配策略依次进行IP接入与转发资源的分配、音视频适配资源的分配；
b.对于会议的非第一个会场，按照非第一个会场分配策略依次进行IP接入与转发资源、音视频视频资源的分配；如果在分配的过程中，出现了跨物理机的情况，则同时需要进行附加的音频解码资源和附加视频编解码资源的分配；
2.3软MCU进行SVC+AVC会议资源分配过程(会议中包括SVC会场和AVC会场)：
a.如果为会议的第一个会场，按照第一个会场分配策略进行资源的分配；
b.如果为会议的非第一个会场，按照非第一个会场分配策略进行资源的分配；
一、软MCU进行SVC会议资源分配过程介绍如下：
第一个会场分配策略：依据空闲IP接入与转发资源对通用服务器集群中的媒体接入与处理机进行排序，则在空闲的IP接入与转发资源最多的媒体接入与处理机上为所述第一会场分配IP接入与转发资源；如果没有满足第一会场的IP接入与转发资源需求的媒体接入与处理机，则视为系统的IP接入与转发资源不足，分配失败；
非第一个会场分配策略：对于SVC会议的非第一个会场的资源分配，需要考虑前面SVC会场的资源分配情况，策略是确保一个会议的SVC会场IP接入与转发资源尽量在同一物理机上，如果在先分配的SVC会场的媒体接入与处理机上没有足够的IP接入与转发资源，则为后续的SVC会场分配新的媒体接入与处理机。
二、软MCU进行AVC会议资源分配过程介绍如下：
对于AVC会议(只包含AVC会场)，需要分配IP接入与转发资源，以及媒体适配资源，当 AVC会场被分配在多个物理机上时，还需要分配附加的音频解码资源、附加的视频编码与解码资源。
第一会场分配策略：针对AVC会场，首先进行IP接入与转发资源的分配，所述通用服务器集群中存在满足所述第一会场的IP接入与转发资源的媒体接入与处理机，在通用服务器集群中选择空闲IP接入与转发资源最多的媒体接入与处理机为所述第一会场提供IP接入与转发资源。其次进行媒体视频资源的分配，当已分配的所述媒体接入与处理机中同时满足所述第一会场媒体适配资源需求时，分配所述媒体接入与处理机为所述第一会场提供媒体适配资源；当已分配的所述媒体接入与处理机不满足所述第一会场的媒体适配资源需求时，选择通用服务器中媒体处理机为所述第一会场提供媒体适配资源；进一步的，当所述通用服务器中的各个媒体处理机均无法满足所述第一会场的媒体适配资源需求时，重新选择满足所述第一会场媒体适配资源需求的媒体接入和处理机为所述第一会场提供媒体适配资源。
概括性的，所述软MCU对AVC会议中第一个会场的分配策略为：先分配IP接入与转发资源，选择空闲IP接入与转发资源最多的媒体接入与处理机，进一步的，按照以下顺序对第一会场进行媒体适配资源的分配：已分配的IP接入与转发资源所在的媒体接入与处理机；媒体处理机；其他的媒体接入与处理机。对于第一会场需要的其他资源尽可能的分配在同一物理机上。
非第一会场的分配策略：
对于AVC会议的非第一个会场的资源分配，需要考虑前面AVC会场的资源分配情况，尽量使得一个会议的AVC会场适配端口资源尽量在同一物理机上、会场的IP接入与转发资源与媒体适配资源尽量在同一物理机，一个会议的AVC会场IP接入与转发资源尽量在同一物理机上。
对第一会场以后的其他AVC会场分配IP接入与转发资源，将待分配的SVC会场尽可能的分配到已承载AVC会场最多的媒体接入与处理机上。当为所述会议中的AVC会场已经分配的媒体接入与处理机上没有足够资源时，可以新选择有足够资源的媒体接入与处理机。
另一方面，在上述会议资源分配过程中，如果所述AVC会议被分配到多个物理机上，则，还需要在各个物理机上分配附加的音频解码资源、附件的视频编码、解码资源。具体的，当会议跨物理机时的附件资源分配策略如下：
1.附加音频解码资源：当会议中的音频会场跨物理机时，在为所述会议分配的每台物理机上为分配附加的四路解码资源，用于会议中音量最大四方音频会场数据的解码，每台物理机独立进行音量最大四方音频会场数据的解码、混音处理，混音后的数据转发给接入到本物理机的音频会场；
2.附加视频解码资源：当会议中的视频会场跨物理机时，需要附加解码资源，用于解码跨物理机的观看源、多画面源。该解码资源采用动态分配机制，会控业务需要相应的资源时 进行分配，需要在观看会场接入的物理机上进行分配，例如A需要观看B，A接入在物理机1的H.263 AVC会场，B接入在物理机2的H.264 AVC会场，则需要在物理机1上分配附加的视频解码资源用于解码会场B的数据；
3.附加视频编码资源：当会议中的视频会场跨物理机时，需要附加编码资源，用于AVC会场数据重编码，用于跨物理机的其他同能力AVC会场观看多画面、低能力AVC会场的观看、多画面。该编码资源采用动态分配机制，在会控业务需要相应的资源时在被观看会场接入的物理机上进行分配，假如A需要观看B，A接入在物理机1的720p h.264 AVC会场，B接入在物理机2的1080p h.264 AVC会场，则需要在物理机2上分配附加的编码资源用于将会场B的数据重编码为720p大小，转发给物理机1供会场A观看。
三、软MCU进行SVC+AVC会议资源分配过程介绍如下：
对于软MCU下的SVC+AVC会议，SVC会场需要分配IP接入与转发资源，AVC会场需要分配IP接入与转发资源，以及音视频适配资源，当所述AVC会场跨物理机时，还需要再对应的物理机上分配附加的音频解码资源、附加的视频编码、附加的解码资源。
第一个会场分配策略：
如果第一个入会会场为SVC会场，则按照软MCU的SVC会议的第一个SVC会场策略进行处理，具体请阅SVC会议资源分配过程，此处不再赘述；
如果第一个入会会场为AVC会场，则按照软MCU的AVC会议的第一个AVC会场策略进行处理，具体请阅AVC会议资源分配过程，此处不再赘述；
非第一会场分配策略：
对非第一会场，遵从以下策略：
1.一个会议的所有SVC会场的IP接入与转发资源尽量在同一物理机上；
2.一个会议的AVC会场适配端口资源尽量在同一物理机上、会场的IP接入与转发资源与媒体适配资源尽量在同一物理机上；
3.其次保证SVC会场的IP接入与转发资源、AVC会场的媒体适配资源、AVC会场的IP接入与转发资源在同一物理机上；
4.其次保证AVC会场的IP接入与转发资源、SVC会场的IP接入与转发资源在同一物理机上。
当所述非第一会场为SVC会场时：对该会议已分配的SVC会场的IP接入与转发资源所在的物理机进行处理(按照承载的会场数量从多到少的顺序对物理机进行处理)，对该会议已分配的AVC会场媒体适配资源所在的物理机进行处理(按照承载会场数量从多到少的顺序对物理机进行处理)，对该会议已分配的AVC会场IP接入与转发资源所在的物理机进行处理(按照承 载会场数量从多到少的顺序对物理机进行处理)；循环扫描上述所有的物理机，将空闲的IP接入与转发资源最多的物理机分配给所述非第一会场；如果上述所有的物理机均不满足所述非第一会场的IP接入与转发资源需求，则在所述通用服务器集群中为所述非第一会场选择空闲IP接入与转发资源最多的媒体接入与处理机。
当所述非第一会场为AVC会场时，需要分配的资源包括IP接入与转发资源、AVC适配资源，首先分配IP接入与转发资源,
对该会议中已分配的AVC会场媒体适配资源所在的物理机进行处理(按照承载会场数量从多到少的顺序对物理机进行处理)，对该会议已分配AVC会场IP接入与转发资源所在的物理机进行处理(按照承载会场数量从多到少的顺序对物理机进行处理)，对该会议已分配SVC会场IP接入与转发资源所在的物理机进行处理(按照承载会场数量从多到少的顺序对物理机进行处理)；
依次扫描上述所有的物理机，将空闲的IP接入与转发资源最多的物理机分配给所述非第一会场；如果上述所有的物理机均不满足所述非第一会场的IP接入与转发资源和媒体适配资源需求，则按照AVC会议分配过程中的第一个AVC会场分配策略来处理。
进一步的，当会议中的AVC会场跨物理机时，在相关的物理机上分配附加会议资源，具体包括：
附加音频解码资源：当会议中的AVC会场跨物理机时，需要在每台物理机上为每个会议分配附加的四路解码资源，用于会议中音量最大四方音频会场数据的解码，每台物理机独立进行音量最大四方音频会场数据的解码、混音处理，混音后的数据转发给接入到本物理机的音频会场；
附加视频解码资源：用于SVC会场数据解码，针对AVC会场观看SVC会场或AVC会场观看的多画面源中含SVC会场的场景，还用于跨物理机之间的AVC会场的观看处理。可以采用动态分配机制，会控业务需要相应的资源时分配在需要观看SVC或AVC会场的AVC会场的物理机上；
附加视频编码资源：用于AVC会场数据编码，针对SVC会场观看AVC会场或SVC会场观看的多画面源中含AVC会场的场景；还用于跨物理机的AVC会场的相互观看与多画面；可以采用动态分配机制，当会控业务需要相应的资源时分配在AVC会场媒体适配资源所在的物理机。
需要说明的是，在本发明上述实施例中，附加资源分配过程中所指出的附加的四路解码资源为示例性举例，本领域技术人员可以理解的是，依据会议的需求更改附加的解码资源路数。
实施例四
本发明实施例四提供了一种混合MCU的会议资源分配过程，简述如下：
混合MCU确定会议类型，针对SVC会议、AVC会议、以及SVC+AVC会议进行会议资源调度。
一、混合MCU进行SVC会议资源分配过程：
对于SVC会议，混合MCU只需要分配IP接入与转发资源。
第一个会场分配策略：SVC会议需要优先分配到软物理机上，即优先分配到通用服务器上。优选的，选择IP接入与转发资源满足所述第一会场资源需求的媒体接入与处理机；如果通用服务器集群中存在多台媒体接入与处理机满足所述第一会场资源需求，则选择空闲IP接入与转发资源最多的媒体接入与处理机分配给所述第一会场；进一步的，当所述通用服务器集群中的所有媒体接入与处理机均不满足所述第一会场的资源需求时，在所述混合MCU中选择空闲IP接入与转发资源最多的硬件资源板，进一步的，当所述硬件资源板存在多个单板时，选择所述硬件资源板中剩余资源最多的单板。
非第一个会场分配策略：
对于SVC会议的除第一个SVC会场以外的其他SVC会场，在进行资源分配时，尽量使得一个会议的SVC会场的IP转发资源在同一物理机上或同一物理机的同一单板上。依次扫描已分配的所有的物理机以及所有单板，如果均不满足所述非第一会场的资源需求，则按照会议的第一个会场分配策略来为所述非第一会场分配资源。
二、混合MCU进行AVC会议资源分配过程：
对于混合MCU的AVC会议，需要分配IP接入与转发资源、媒体适配资源，当会议中的AVC会场跨物理机时，还需要在相关的物理机上分配附加的音频解码资源、附加的视频编码与解码资源。
对于混合MCU第一个AVC会场分配策略，首先按照以下顺序分配第一AVC会场的IP接入与转发资源：硬件资源板、通用服务器集群中的媒体接入与处理机。优先选择IP接入与转发资源空闲最多的物理机；对于硬件资源板存在多块单板时，选择IP接入与转发资源剩余最多的单板。通过上述方式，使得AVC会议优先使用剩余IP接入与转发资源最多的硬件资源板,尽量避免为后续会场分配的媒体适配资源与IP接入与转发资源跨物理机。完成第一AVC会场的IP接入与转发资源的分配后，按照如下顺序继续为第一AVC会场分配媒体适配资源：IP接入与转发资源所在的硬件资源板、其他硬件资源板、IP接入与转发资源所在的媒体接入与处理机、其他媒体接入与处理机。通过这种分配方式，使得硬件资源板的媒体适配资源被优先分配给AVC会场，提高音视频处理效率，其次尽量使得媒体适配资源与IP接入与转发资源在同一物理机或同一单板，减少了码流在物理机间、单板间的转发带来的网络负担。
对于混合MCU非第一个AVC会场分配策略：需要考虑前面AVC会场的资源分配情况，确保一 个会议的AVC会场适配端口资源尽量在同一物理机上、会场的IP接入与转发资源与适配资源尽量在同一物理机、一个会议的AVC会场IP接入与转发资源尽量在同一物理机上。对于硬物理机中有多块单板时，按照单板上承载会场数量从多到少的顺序依次处理，保证尽量多的会场分配在同一硬物理机的同一单板上。
当AVC会议跨物理机时，混合MCU附加资源分配策略与软MCU的AVC会议附加资源分配策略相同，此处不再赘述。
三、混合MCU进行SVC+AVC会议资源分配过程：
SVC会场需要IP接入与转发资源，AVC会场需要IP接入与转发资源，以及音视频适配资源，当所述AVC会场跨物理机时，还需要再对应的物理机上分配附加的音频解码资源、附加的视频编码、附加的解码资源。
1.混合MCU第一个会场分配策略:IP接入与转发资源分配中物理机选择顺序如下：硬件资源板、通用服务器集群中的媒体接入与处理机。AVC媒体适配资源分配中选择物理机的顺序如下：硬件资源板(IP接入与转发资源所在的单板、物理机)、其他硬件资源板、通用服务器集群中的媒体接入与处理机(IP接入与转发资源所在的物理机)、通用服务器集群中的媒体处理机。尽量使得SVC+AVC的混合会议优先调度到硬件资源板上,使用硬件资源板的IP接入与转发资源，从而减少跨物理机之间的码流转发。
2.混合MCU非第一个会场分配策略：
基本分配原则为：优先使用硬件资源板，其次使用通用服务器集群中的媒体接入与处理机和媒体处理机。最优的情况，会议的SVC、AVC会场尽量在同一物理机；次优的情况，所有AVC会场尽量在同一物理机；再次优的情况，所有SVC会场尽量在同一物理机。
需要说明的是，当硬件资源板上有多块单板时，按照单板上会场数量从多到少的顺序依次排序，使得尽可能多的会场分配在同一硬物理机的同一单板上。
2.1当所述非第一个会场为SVC会场时，按照下述顺序为会场分配物理机以提供会场所需的会议资源：
按照SVC会场IP接入与转发资源、AVC会场媒体适配资源、AVC会场IP接入与转发资源三种类型，对已分配会场的上述三种类型的资源所在的物理机按下述顺序进行排序：硬件资源板(SVC会场IP接入与转发资源)、媒体接入与处理机(SVC会场IP接入与转发资源)、硬件资源板(AVC适配资源)、媒体处理机(AVC适配资源)、硬件资源板(AVC会场IP接入与转发资源)、媒体接入与处理机(AVC会场IP接入与转发资源)，进一步的，上述每一类物理机中的各个物理机按照从承载会场数量从多到少的顺序进行排序；
按照前述的顺序，依次查找满足所述非第一个会场(SVC会场)的IP接入与转发资源的物理机，分给所述非第一个会场(SVC会场)以提供IP接入与转发资源。
依次扫描完所有的物理机，如果没有完成资源的分配，则按照混合MCU混合会议的第一个会场分配策略进行会议资源分配；
2.2当所述非第一个会场为AVC会场时，所述AVC会场需要IP接入与转发资源，以及媒体适配资源，首先分配IP接入与转发资源，再分配媒体适配资源。按照下述顺序为会场分配物理机以提供会场所需的会议资源：
按照AVC会场媒体适配资源、AVC会场IP接入与转发资源、SVC会场IP接入与转发资源三种类型，对已分配会场的上述三种类型的资源所在的物理机按下述顺序进行排序：硬件资源板(AVC适配资源)、媒体处理机(AVC适配资源)、硬件资源板(AVC会场IP接入与转发资源)、媒体接入与处理机(AVC会场IP接入与转发资源)、硬件资源板(SVC会场IP接入与转发资源)、媒体接入与处理机(SVC会场IP接入与转发资源)，进一步的，上述每一类物理机中的各个物理机按照从承载会场数量从多到少的顺序进行排序；
按照前述的顺序，依次查找满足所述非第一个会场(AVC会场)的IP接入与转发资源需求和媒体适配资源需求的物理机，分给所述非第一个会场(SVC会场)以提供IP接入与转发资源和媒体适配资源。
需要说明的是，在前述规则中，以硬件资源板(AVC适配资源)为例进行说明，所述硬件资源板(AVC适配资源)表示AVC会场媒体适配资源所在的硬件资源板。
特例情况：当硬件资源板没有足够的IP接入与转发资源时，若在先的已分配会场均为SVC会场，根据前述的资源分配规则，上述在先的已分配的SVC会场均会由媒体接入与处理机提供IP接入与转发资源。此时，若上述非第一个会场为AVC会场时，将AVC会场分配到硬件资源板。本特性情况针对在先入会的会场均为SVC会场，但硬件资源板无IP接入与转发资源，在先的SVC会场被分配到媒体接入与处理机上，为避免后续的AVC会场跟随在先的SVC会场也被分配到媒体接入与处理机上，导致AVC会场的音视频处理无法利用硬件资源板，因此定义了本特殊情况下的会议资源分配策略，使得第一个AVC会场可以被分配到硬件资源板。
当AVC+AVC混合会议跨物理机时，混合MCU附加资源分配策略与软MCU的SVC+AVC会议的附加资源分配策略相同，此处不再描述。
需要说明的是，在本发明上述实施例中，IP接入与转发资源所在的物理机是指为在先的会场分配的提供IP接入与转发资源的物理机，目的在于尽可能使得后续分配的会场的IP接入与转发资源也与在先的会场在同一个物理机上。
混合MCU为AVC+SVC混合会议分配会议资源时，优先分配硬件资源板为混合会议提供会议资源。
本发明上述各实施例中，在会议资源分配时，各会场的IP接入与转发资源与音视频适配资源优选分配在同一单板或物理机上，尽量减少RTP码流在不同单板、不同物理机之间的转发；需要媒体适配资源的会议优先分配到硬件资源板上，只需要IP接入与转发资源的SVC会场优先分配到媒体接入与处理机上，从而保证软、硬媒体资源的性价比,通过前述的分配策略，实现资源的最优分配与利用，同时提升会场相互观看的视频效果。
与前述装置实施例相对于，本发明实施例还提供了会议资源调度的方法，
实施例五
本发明实施例提供了一种MCU执行会议资源调度的方法，应用于视频会议系统，所述MCU包括通用服务器集群，所述通用服务器集群中用于媒体控制与处理，以及提供业务网口的通用服务器作为媒体接入与处理机，所述媒体接入与处理机具备媒体适配资源以及IP接入与转发资源，所述会议资源包括IP接入与转发资源，以及媒体适配资源，
所述MCU与多个会场相连，确定所述多个会场中的第一会场的会场类型；
若所述第一会场为SVC会场，所述MCU为所述第一会场分配第一媒体接入与处理机以提供IP接入与转发资源；
所述MCU确定所述多个会场中的第二会场的会场类型；
若所述第二会场为SVC会场，所述MCU确定所述第一媒体接入与处理机剩余的IP接入与转发资源满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源。
进一步的，所述方法还包括：
若所述第二会场为AVC会场，所述MCU在确定所述第一媒体接入与处理机剩余的IP接入与转发资源，以及媒体适配资源均满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源，以及媒体适配资源。
所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，所述方法还包括：若所述第二会场为AVC会场，所述MCU还用于在确定所述第一媒体接入与处理机剩余的IP接入与转发资源满足所述第二会场的需求，且所述第一媒体接入与处理机剩余的媒体适配资源不满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源，分配第一媒体处理机以提供媒体适配资源。
若所述第二会场为AVC会场，所述MCU在确定所述第一媒体接入与处理机剩余的IP接 入与转发资源，以及媒体适配资源均不满足所述第二会场的需求时，为所述第二会场分配第二媒体接入与处理机以提供IP接入与转发资源，以及媒体适配资源。
所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，所述方法还包括：若所述第一会场为AVC会场，当所述第一媒体接入与处理机满足所述第一会场的资源需求时，所述MCU将所述第一媒体接入与处理机分配给所述AVC会场，当所述通用服务器集群中不存在同时满足所述第一会场的IP接入与转发资源需求以及媒体适配资源需求的媒体接入与处理机时，所述MCU为所述AVC会场分别分配满足其IP接入与转发资源需求的媒体接入与处理机、满足其媒体适配资源需求的媒体处理机。
所述方法还包括：若所述多个会场中的AVC会场分配给多个通用服务器时，在所述多个通用服务器上分配附加的音频解码资源和附加的视频编解码资源。
所述MCU接收所述多个会场发送的会议接入请求消息，根据所述会议接入请求消息确定所述多个会场的会场类型；或者，所述MCU接收SMC发送的通知消息，所述通知消息中携带与所述MCU相连的所述多个会场的会场类型。
在MCU为所述多个会场分配会议资源之前，所述方法还包括：所述MCU确定所述多个会场所需的会议资源。
实施例六
本发明实施例提供了另一种MCU执行会议资源调度的方法，应用于视频会议系统，所述MCU包括通用服务器集群和硬件资源板，所述通用服务器集群中用于媒体控制与处理，以及提供业务网口的通用服务器作为媒体接入与处理机，所述会议资源包括IP接入与转发资源，以及媒体适配资源，所述媒体接入与处理机和所述硬件资源板均具备媒体适配资源以及IP接入与转发资源，所述方法包括：
所述MCU与多个会场相连，确定所述多个会场中的第一会场的会场类型；
若所述第一会场为AVC会场，当所述MCU中存在满足所述第一会场的IP接入与转发资源需求的第一硬件资源板时，所述MCU为所述第一会场分配所述第一硬件资源板以提供IP接入与转发资源，当所述第一硬件资源板满足所述第一会场的媒体适配资源需求时，所述MCU为所述第一会场分配所述第一硬件资源板以提供媒体适配资源。
进一步的，当所述第一硬件资源板不满足所述第一会场的媒体适配资源需求时，所述MCU分配其他硬件资源板为所述第一会场提供媒体适配资源。
当所述MCU中不存在满足所述第一会场的IP接入与转发资源需求的第一硬件资源板时，所述MCU为所述第一会场分配满足所述第一会场的IP接入与转发资源需求的第一媒体接入 与处理机。
所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，所述方法还包括：当所述MCU中的硬件资源板以及媒体接入与处理机均不满足所述多个会场中的第二会场的媒体适配资源需求时，所述MCU在所述媒体处理机上为所述第二会场分配媒体适配资源。
所述MCU在所述第一硬件资源板上为所述第二会场分配IP接入与转发资源，以及媒体适配资源。
若所述第一会场为SVC会场，当所述通用服务器集群中存在第一媒体接入与处理机满足所述第一会场的IP接入与转发资源需求时，所述MCU为所述第一会场分配第一媒体接入与处理机；
当所述通用服务器集群中不存在满足所述第一会场的IP接入与转发资源需求的媒体接入与处理机时，所述MCU为所述第一会场分配满足所述第一会场的IP接入与转发资源需求的第一硬件资源板。
若所述第一会场为SVC会场，当所述第一媒体接入与处理机上的剩余资源满足所述多个会场中的其他SVC会场的IP接入与转发资源需求时，所述MCU为所述多个会场中的其他SVC会场分配所述第一媒体接入与处理机。
若所述第一会场为SVC会场，当所述第一硬件资源板上的剩余资源满足所述多个会场中的其他SVC会场的IP接入与转发资源需求时，所述MCU为所述多个会场中的其他SVC会场分配所述第一硬件资源板。
若所述多个会场中的AVC会场分配给多个通用服务器或多个硬件资源板时，所述MCU在所述多个通用服务器或多个硬件资源板上为所述多个会场中的AVC会场分配附加的音频解码资源和附加的视频编解码资源。
所述MCU接收所述多个会场发送的会议接入请求消息，根据所述会议接入请求消息确定所述多个会场的会场类型；或者，
所述MCU接收SMC发送的通知消息，所述通知消息中携带与所述MCU相连的所述多个会场的会场类型。
在MCU为所述多个会场分配会议资源之前，所述方法还包括：所述MCU确定所述多个会场所需的会议资源。
通过以上的实施方式的描述可知，本领域的技术人员可以清楚地了解到上述实施例方法中的全部或部分步骤可借助软件加必需的通用硬件平台的方式来实现。如图2和图3所示，为本发明实施例提供的一种软MCU和混合MCU的硬件结构示意图。基于上述图2或图3示出 的硬件结构，处理器执行上述各实施例中的策略，为接入会议的会场分配会议资源，其中，所述策略可以以软件产品的形式体现出来，该计算机软件产品可以存储在存储介质中，如ROM/RAM、磁碟、光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，资源管理服务器，或者诸如媒体网关等网络通信设备，等等)执行本发明各个实施例或者实施例的某些部分所述的方法。
需要说明的是，本说明书中的各个实施例均采用递进的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不同之处。尤其，对于设备及系统实施例而言，由于其基本相似于方法实施例，所以描述得比较简单，相关之处参见方法实施例的部分说明即可。以上所描述的设备及系统实施例仅仅是示意性的，其中作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。
以上所述仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内所作的任何修改、等同替换、改进等，均包含在本发明的保护范围内。

Claims (38)

  1. 一种多点控制单元MCU，其特征在于，应用于视频会议系统，所述MCU包括通用服务器集群，所述通用服务器集群中用于媒体控制与处理，以及提供业务网口的通用服务器作为媒体接入与处理机；所述媒体接入与处理机具备媒体适配资源以及IP接入与转发资源；
    所述MCU与多个会场相连，所述MCU用于为所述多个会场分配会议资源，所述会议资源包括IP接入与转发资源，以及媒体适配资源；
    所述MCU用于确定第一会场的会场类型；
    若所述第一会场为可分级的视频编码SVC会场，所述MCU还用于为所述第一会场分配第一媒体接入与处理机以提供IP接入与转发资源；
    所述MCU还用于确定所述多个会场中的第二会场的会场类型；
    若所述第二会场为SVC会场，所述MCU还用于确定所述第一媒体接入与处理机剩余的IP接入与转发资源满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源。
  2. 如权利要求1所述的MCU，其特征在于，
    若所述第二会场为高级视频编码AVC会场，所述MCU还用于在确定所述第一媒体接入与处理机剩余的IP接入与转发资源，以及媒体适配资源均满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源，以及媒体适配资源。
  3. 如权利要求1或2所述的MCU，其特征在于，所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，
    若所述第二会场为AVC会场，所述MCU还用于在确定所述第一媒体接入与处理机剩余的IP接入与转发资源满足所述第二会场的需求，且所述第一媒体接入与处理机剩余的媒体适配资源不满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源，分配第一媒体处理机以提供媒体适配资源。
  4. 如权利要求1-3任一所述的MCU，其特征在于，
    若所述第二会场为AVC会场，所述MCU还用于在确定所述第一媒体接入与处理机剩余的IP接入与转发资源，以及媒体适配资源均不满足所述第二会场的需求时，为所述第二会场分配第二媒体接入与处理机以提供IP接入与转发资源，以及媒体适配资源。
  5. 如权利要求1所述的MCU，其特征在于，所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，
    若所述第一会场为AVC会场，当所述第一媒体接入与处理机满足所述第一会场的资源需 求时，所述MCU还用于将所述第一媒体接入与处理机分配给所述AVC会场，当所述通用服务器集群中不存在同时满足所述第一会场的IP接入与转发资源需求以及媒体适配资源需求的媒体接入与处理机时，所述MCU还用于为所述AVC会场分别分配满足其IP接入与转发资源需求的媒体接入与处理机、满足其媒体适配资源需求的媒体处理机。
  6. 如权利要求1所述的MCU,其特征在于，
    若所述多个会场中的AVC会场分配给多个通用服务器时，所述MCU还用于在所述多个通用服务器上为所述多个会场中的AVC会场分配附加的音频解码资源和附加的视频编解码资源。
  7. 如权利要求1所述的MCU，其特征在于，
    所述MCU还用于接收所述多个会场发送的会议接入请求消息，根据所述会议接入请求消息确定所述多个会场的会场类型；或者，
    所述MCU还用于接收业务管理中心SMC发送的通知消息，所述通知消息中携带与所述MCU相连的所述多个会场的会场类型。
  8. 如权利要求1所述的MCU，其特征在于，
    所述MCU，还用于确定所述多个会场所需的会议资源。
  9. 一种MCU，其特征在于，应用于视频会议系统，所述MCU包括通用服务器集群和硬件资源板，所述通用服务器集群中用于媒体控制与处理，以及提供业务网口的通用服务器作为媒体接入与处理机，所述媒体接入与处理机和所述硬件资源板均具备媒体适配资源以及IP接入与转发资源；
    所述MCU与多个会场终端相连，所述MCU用于为所述多个会场分配会议资源，所述会议资源包括IP接入与转发资源，以及媒体适配资源；
    所述MCU用于确定第一会场的会场类型；
    若所述第一会场为AVC会场，当所述MCU中存在满足所述第一会场的IP接入与转发资源需求的第一硬件资源板时，所述MCU还用于为所述第一会场分配所述第一硬件资源板以提供IP接入与转发资源，当所述第一硬件资源板满足所述第一会场的媒体适配资源需求时，所述MCU还用于为所述第一会场分配所述第一硬件资源板以提供媒体适配资源。
  10. 如权利要求9所述的MCU，其特征在于，
    当所述第一硬件资源板不满足所述第一会场的媒体适配资源需求时，所述MCU还用于分配其他硬件资源板为所述第一会场提供媒体适配资源。
  11. 如权利要求9所述的MCU，其特征在于，
    当所述MCU中不存在满足所述第一会场的IP接入与转发资源需求的第一硬件资源板时， 所述MCU还用于为所述第一会场分配满足所述第一会场的IP接入与转发资源需求的第一媒体接入与处理机。
  12. 如权利要求9所述的MCU，其特征在于，所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，
    当所述MCU中的硬件资源板以及媒体接入与处理机均不满足所述多个会场中的第二会场的媒体适配资源需求时，所述MCU还用于在所述媒体处理机上为所述第二会场分配媒体适配资源。
  13. 如权利要求9所述的MCU，其特征在于，
    所述MCU还用于在所述第一硬件资源板上为所述多个会场中的第二会场分配IP接入与转发资源，以及媒体适配资源。
  14. 如权利要求9所述的MCU，其特征在于，
    若所述第一会场为SVC会场，当所述通用服务器集群中存在第一媒体接入与处理机满足所述第一会场的IP接入与转发资源需求时，所述MCU还用于为所述第一会场分配第一媒体接入与处理机；
    当所述通用服务器集群中不存在满足所述第一会场的IP接入与转发资源需求的媒体接入与处理机时，所述MCU还用于为所述第一会场分配满足所述第一会场的IP接入与转发资源需求的第一硬件资源板。
  15. 如权利要求14所述的MCU，其特征在于，
    若所述第一会场为SVC会场，当所述第一媒体接入与处理机上的剩余资源满足所述多个会场中的其他SVC会场的IP接入与转发资源需求时，所述MCU还用于为所述多个会场中的其他SVC会场分配所述第一媒体接入与处理机。
  16. 如权利要求14所述的MCU，其特征在于，
    若所述第一会场为SVC会场，当所述第一硬件资源板上的剩余资源满足所述多个会场中的其他SVC会场的IP接入与转发资源需求时，所述MCU还用于为所述多个会场中的其他SVC会场分配所述第一硬件资源板。
  17. 如权利要求9所述的MCU,其特征在于，
    若所述多个会场中的AVC会场分配给多个通用服务器或多个硬件资源板时，所述MCU在所述多个通用服务器或多个硬件资源板上为所述AVC会场分配附加的音频解码资源和附加的视频编解码资源。
  18. 如权利要求9所述的MCU，其特征在于，
    所述MCU还用于接收所述多个会场发送的会议接入请求消息，根据所述会议接入请求消 息确定所述多个会场的会场类型；或者，
    所述MCU还用于接收SMC发送的通知消息，所述通知消息中携带与所述MCU相连的所述多个会场的会场类型。
  19. 如权利要求9所述的MCU，其特征在于，
    所述MCU，还用于确定所述多个会场所需的会议资源。
  20. 一种MCU执行会议资源调度的方法，其特征在于，应用于视频会议系统，所述MCU包括通用服务器集群，所述通用服务器集群中用于媒体控制与处理，以及提供业务网口的通用服务器作为媒体接入与处理机，所述媒体接入与处理机具备媒体适配资源以及IP接入与转发资源，所述会议资源包括IP接入与转发资源，以及媒体适配资源，
    所述MCU与多个会场相连，确定所述多个会场中的第一会场的会场类型；
    若所述第一会场为SVC会场，所述MCU为所述第一会场分配第一媒体接入与处理机以提供IP接入与转发资源；
    所述MCU确定所述多个会场中的第二会场的会场类型；
    若所述第二会场为SVC会场，所述MCU确定所述第一媒体接入与处理机剩余的IP接入与转发资源满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源。
  21. 如权利要求20所述的方法，其特征在于，还包括：
    若所述第二会场为AVC会场，所述MCU在确定所述第一媒体接入与处理机剩余的IP接入与转发资源，以及媒体适配资源均满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源，以及媒体适配资源。
  22. 如权利要求20或21所述的方法，其特征在于，所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，所述方法还包括：
    若所述第二会场为AVC会场，所述MCU还用于在确定所述第一媒体接入与处理机剩余的IP接入与转发资源满足所述第二会场的需求，且所述第一媒体接入与处理机剩余的媒体适配资源不满足所述第二会场的需求时，为所述第二会场分配所述第一媒体接入与处理机以提供IP接入与转发资源，分配第一媒体处理机以提供媒体适配资源。
  23. 如权利要求20-22任一所述的方法，其特征在于，还包括：
    若所述第二会场为AVC会场，所述MCU在确定所述第一媒体接入与处理机剩余的IP接入与转发资源，以及媒体适配资源均不满足所述第二会场的需求时，为所述第二会场分配第二媒体接入与处理机以提供IP接入与转发资源，以及媒体适配资源。
  24. 如权利要求20所述的方法，其特征在于，所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，所述方法还包括：
    若所述第一会场为AVC会场，当所述第一媒体接入与处理机满足所述第一会场的资源需求时，所述MCU将所述第一媒体接入与处理机分配给所述AVC会场，当所述通用服务器集群中不存在同时满足所述第一会场的IP接入与转发资源需求以及媒体适配资源需求的媒体接入与处理机时，所述MCU为所述AVC会场分别分配满足其IP接入与转发资源需求的媒体接入与处理机、满足其媒体适配资源需求的媒体处理机。
  25. 如权利要求20所述的方法，其特征在于，还包括：
    若所述多个会场中的AVC会场分配给多个通用服务器时，在所述多个通用服务器上分配附加的音频解码资源和附加的视频编解码资源。
  26. 如权利要求20所述的方法，其特征在于，还包括：
    所述MCU接收所述多个会场发送的会议接入请求消息，根据所述会议接入请求消息确定所述多个会场的会场类型；或者，
    所述MCU接收SMC发送的通知消息，所述通知消息中携带与所述MCU相连的所述多个会场的会场类型。
  27. 如权利要求20所述的方法，其特征在于，在MCU为所述多个会场分配会议资源之前，所述方法还包括：
    所述MCU确定所述多个会场所需的会议资源。
  28. 一种MCU执行会议资源调度的方法，其特征在于，应用于视频会议系统，所述MCU包括通用服务器集群和硬件资源板，所述通用服务器集群中用于媒体控制与处理，以及提供业务网口的通用服务器作为媒体接入与处理机，所述会议资源包括IP接入与转发资源，以及媒体适配资源，所述媒体接入与处理机和所述硬件资源板均具备媒体适配资源以及IP接入与转发资源，所述方法包括：
    所述MCU与多个会场相连，确定所述多个会场中的第一会场的会场类型；
    若所述第一会场为AVC会场，当所述MCU中存在满足所述第一会场的IP接入与转发资源需求的第一硬件资源板时，所述MCU为所述第一会场分配所述第一硬件资源板以提供IP接入与转发资源，当所述第一硬件资源板满足所述第一会场的媒体适配资源需求时，所述MCU为所述第一会场分配所述第一硬件资源板以提供媒体适配资源。
  29. 如权利要求28所述的方法，其特征在于，还包括：
    当所述第一硬件资源板不满足所述第一会场的媒体适配资源需求时，所述MCU分配其他硬件资源板为所述第一会场提供媒体适配资源。
  30. 如权利要求28所述的方法，其特征在于，还包括：
    当所述MCU中不存在满足所述第一会场的IP接入与转发资源需求的第一硬件资源板时，所述MCU为所述第一会场分配满足所述第一会场的IP接入与转发资源需求的第一媒体接入与处理机。
  31. 如权利要求28所述的方法，其特征在于，所述通用服务器集群中用于媒体控制与处理的通用服务器作为媒体处理机，所述媒体处理机具备媒体适配资源，所述方法还包括：
    当所述MCU中的硬件资源板以及媒体接入与处理机均不满足所述多个会场中的第二会场的媒体适配资源需求时，所述MCU在所述媒体处理机上为所述第二会场分配媒体适配资源。
  32. 如权利要求28所述的方法，其特征在于，
    所述MCU在所述第一硬件资源板上为所述第二会场分配IP接入与转发资源，以及媒体适配资源。
  33. 如权利要求28所述的方法，其特征在于，还包括：
    若所述第一会场为SVC会场，当所述通用服务器集群中存在第一媒体接入与处理机满足所述第一会场的IP接入与转发资源需求时，所述MCU为所述第一会场分配第一媒体接入与处理机；
    当所述通用服务器集群中不存在满足所述第一会场的IP接入与转发资源需求的媒体接入与处理机时，所述MCU为所述第一会场分配满足所述第一会场的IP接入与转发资源需求的第一硬件资源板。
  34. 如权利要求33所述的方法，其特征在于，还包括：
    若所述第一会场为SVC会场，当所述第一媒体接入与处理机上的剩余资源满足所述多个会场中的其他SVC会场的IP接入与转发资源需求时，所述MCU为所述多个会场中的其他SVC会场分配所述第一媒体接入与处理机。
  35. 如权利要求33所述的方法，其特征在于，还包括：
    若所述第一会场为SVC会场，当所述第一硬件资源板上的剩余资源满足所述多个会场中的其他SVC会场的IP接入与转发资源需求时，所述MCU为所述多个会场中的其他SVC会场分配所述第一硬件资源板。
  36. 如权利要求28所述的方法，其特征在于，还包括：
    若所述多个会场中的AVC会场分配给多个通用服务器或多个硬件资源板时，所述MCU在所述多个通用服务器或多个硬件资源板上为所述多个会场中的AVC会场分配附加的音频解码 资源和附加的视频编解码资源。
  37. 如权利要求28所述的方法，其特征在于，还包括：
    所述MCU接收所述多个会场发送的会议接入请求消息，根据所述会议接入请求消息确定所述多个会场的会场类型；或者，
    所述MCU接收SMC发送的通知消息，所述通知消息中携带与所述MCU相连的所述多个会场的会场类型。
  38. 如权利要求28所述的方法，其特征在于，在MCU为所述多个会场分配会议资源之前，所述方法还包括：
    所述MCU确定所述多个会场所需的会议资源。
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