WO2020118508A1 - 一种视频传输的方法、装置、系统及服务器 - Google Patents

一种视频传输的方法、装置、系统及服务器 Download PDF

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Publication number
WO2020118508A1
WO2020118508A1 PCT/CN2018/120231 CN2018120231W WO2020118508A1 WO 2020118508 A1 WO2020118508 A1 WO 2020118508A1 CN 2018120231 W CN2018120231 W CN 2018120231W WO 2020118508 A1 WO2020118508 A1 WO 2020118508A1
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WIPO (PCT)
Prior art keywords
video
audio
screen
video data
fusion
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Ceased
Application number
PCT/CN2018/120231
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English (en)
French (fr)
Inventor
胡军
赵金奎
刘皓
尧俊峰
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Hytera Communications Corp Ltd
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Hytera Communications Corp Ltd
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Application filed by Hytera Communications Corp Ltd filed Critical Hytera Communications Corp Ltd
Priority to PCT/CN2018/120231 priority Critical patent/WO2020118508A1/zh
Publication of WO2020118508A1 publication Critical patent/WO2020118508A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Definitions

  • the present invention relates to the field of data transmission, and more specifically, to a video transmission method, device, system, and server.
  • the video streams generated by each camera are first transmitted to the base station, and then transmitted to the dispatching station through the link between the base station and the core network, and then the video monitored by different cameras can be viewed on the dispatching station.
  • the video stream generated by each camera will pass through the core network, which makes the processing pressure of the core network greater and consumes more core network resources.
  • the present invention provides a method, device, system and server for video transmission to solve the problem that when the number of cameras is large, the video stream generated by each camera will pass through the core network, thereby making the processing pressure of the core network larger , Will also consume more core network resources.
  • the present invention adopts the following technical solutions:
  • a video transmission method is applied to a video server.
  • the method includes:
  • the audio and video data stream after the screen fusion is directly output, or the audio and video data stream after the screen fusion is transmitted to the core network, so that the core network outputs the audio and video data stream after the screen fusion.
  • directly outputting the audio and video data stream after the screen fusion includes:
  • the process of creating the audio and video transmission channel includes:
  • creating the audio and video transmission channel for data circulation with the dispatching station in the virtual screen melting device includes:
  • the transmission channel creation request includes media information of the dispatcher station
  • the audio and video transmission channel can perform data circulation.
  • the method further includes:
  • a streaming media transmission channel for data transmission with the camera device to be melted is established according to the information of the device to be melted.
  • the audio and video data stream after the screen fusion is directly output, or the audio and video data stream after the screen fusion is transmitted to the core network, so that the core network outputs the audio and video data after the screen fusion After the stream, it also includes:
  • the audio and video data stream transmission after screen fusion When the audio and video data stream transmission after screen fusion is not required, receive the instruction of closing the virtual screen fusion device sent by the video signaling control center; wherein, the instruction of closing the virtual screen fusion device is the video signaling control center Generated after receiving the melting screen pull-up release request sent by the core network;
  • close the created virtual screen melting device close the created virtual screen melting device.
  • a video transmission device is applied to a video server.
  • the device includes:
  • a video stream receiving module configured to receive multiple audio and video data streams sent by the local data exchange module; wherein, the audio and video data stream is obtained from the audio and video data received by the corresponding camera device by the local data exchange module;
  • a screen fusion module configured to perform screen fusion operations on a plurality of the audio and video data streams to obtain audio and video data streams after the screen fusion;
  • the video stream sending module is used to directly output the audio and video data stream after the screen fusion, or transmit the audio and video data stream after the screen fusion to the core network, so that the core network outputs the screen fusion Audio and video data stream.
  • the video stream sending module includes:
  • Output sub-module which is used to directly output the audio and video data stream after the screen fusion to the dispatching console through the audio and video transmission channel;
  • the device also includes:
  • a request receiving module configured to receive a virtual device creation request sent by a video signaling control center; wherein, the virtual device creation request carries screen fusion template information and device information to be melted, and the virtual device creation request is the The video signaling control center is generated according to the screen fusion creation request sent by the dispatching station;
  • a creation module configured to create a virtual screen melting device according to the virtual device creation request, and send the device number of the created virtual screen melting device to the video signaling control center;
  • the channel establishment module is used to create the audio and video transmission channel for data circulation with the dispatching station in the virtual screen melting device.
  • the channel establishment module includes:
  • a request receiving unit configured to receive a transmission channel creation request sent by the video signaling control center; wherein, the transmission channel creation request includes media information of the dispatching station;
  • the channel creation unit is used to add the audio and video transmission channel that communicates with the dispatcher to the virtual screen melting device, and the channel number of the audio and video transmission channel and the media information of the video server Sent to the video signaling control center;
  • the audio and video transmission channel can perform data circulation.
  • it also includes:
  • the channel creation module is used to send the media information of the video server to the dispatching station after the video signaling control center, when the dispatching station controls each camera device through the video signaling control center to turn on, according to
  • the information of the screen-to-be-melted device establishes a streaming media transmission channel for data transmission with the camera device of each screen-to-be-melted.
  • it also includes:
  • the instruction receiving module is used by the video stream sending module to directly output the audio and video data stream after the screen fusion, or transmit the audio and video data stream after the screen fusion to the core network, so that the core network outputs After the audio and video data stream after the screen fusion, when the audio and video data stream after the screen fusion is not required to be received, an instruction to close the virtual screen fusion device sent by the video signaling control center is received;
  • the screen melting device instruction is generated after the video signaling control center receives the screen melting pull-up release request sent by the core network;
  • the closing module is configured to close the created virtual screen melting device according to the instruction to close the virtual screen melting device.
  • a video server including: a processor, a sending port and a receiving port;
  • the receiving port is configured to receive multiple audio and video data streams sent by the local data exchange module; wherein the audio and video data streams are obtained from the audio and video data received by the corresponding camera device by the local data exchange module;
  • the processor is configured to perform screen fusion operations on a plurality of the audio and video data streams to obtain audio and video data streams after the screen fusion;
  • the sending port is used to directly output the audio and video data stream after the screen fusion, or transmit the audio and video data stream after the screen fusion to the core network, so that the core network outputs the screen fusion Audio and video data stream.
  • a video transmission system including:
  • the local data exchange module is used to receive audio and video data sent by multiple camera devices, and obtain audio and video data streams from each audio and video data, and send the obtained multiple audio and video data streams to the video server;
  • the video server is configured to receive a plurality of audio and video data streams sent by a local data exchange module, perform screen fusion operations on the plurality of audio and video data streams, to obtain the audio and video data stream after the screen fusion, and merge the fusion
  • the audio and video data stream behind the screen is transmitted to the dispatching station;
  • the dispatching station is used to receive the audio and video data stream after the screen fusion directly or through the core network.
  • the present invention has the following beneficial effects:
  • the present invention provides a video transmission method, device, system and server.
  • the audio and video data stream after the screen fusion can be directly transmitted to the dispatching station.
  • the core network can be eliminated without passing through the core network. Processing pressure of the net.
  • the audio and video data stream after the screen fusion is transmitted to the core network, so that the core network sends the audio and video data stream after the screen fusion to the dispatching station, and the core network transmits the screen after the fusion Audio and video data.
  • the audio and video data after melting the screen is one audio and video data stream converted from multiple audio and video data streams.
  • the resources required to receive one audio and video data stream are less than those required to receive multiple audio and video data streams. Resources, in turn, can reduce the processing pressure of the core network.
  • FIG. 1 is a method flowchart of a video transmission method provided by the present invention
  • FIG. 2 is a flowchart of another video transmission method provided by the present invention.
  • FIG. 3 is a flowchart of an operation before video transmission provided by the present invention.
  • FIG. 5 is a schematic structural diagram of a video transmission device provided by the present invention.
  • the embodiments of the present invention provide a video transmission method, which is applied to a video server.
  • the video transmission method may include:
  • the audio and video data stream is obtained from the audio and video data received by the corresponding camera device by the local data exchange module.
  • the local data exchange module can be represented by the LIPA gateway L-GW.
  • the local data exchange module is closer to the base station, and the camera device sends the collected audio and video data to the base station through the long-term evolution LTE air interface of the universal mobile communication technology, and then the base station sends the audio and video data to the local data exchange module.
  • the local data exchange module removes the GTPU packet header of each audio and video data received, and takes out the audio and video stream in the audio and video data, which is the audio and video data stream in this embodiment.
  • the camera device may include a camera.
  • the local data exchange module sends multiple audio and video data streams to the video server.
  • the video server is set at a position close to the base station of the local data exchange module.
  • the number of audio and video data of the camera devices received by the base station is determined by the dispatching station.
  • the base station receives the audio and video data sent by the corresponding camera devices.
  • performing screen fusion operations on a plurality of the audio and video data streams refers to synthesizing multiple audio and video data streams into one audio and video data stream, that is, the audio and video data streams after the screen fusion can be obtained.
  • the video server can also perform frequency selection, frequency overlapping, compression, and local storage operations on the multiple audio and video data.
  • the video server can directly communicate with the dispatcher station or through the core network.
  • the audio and video data channel after the screen fusion can be directly transmitted to the dispatching station. In this case, it does not need to pass through the core network, thereby reducing the processing pressure of the core network.
  • the audio and video data stream after the screen fusion is transmitted to the core network, so that the core network sends the audio and video data stream after the screen fusion to the dispatching station, and the core network transmits the screen after the fusion Audio and video data.
  • the audio and video data after melting the screen is one audio and video data stream converted from multiple audio and video data streams.
  • the resources required to receive one audio and video data stream are less than those required to receive multiple audio and video data streams. Resources, in turn, can reduce the processing pressure of the core network.
  • directly outputting the audio and video data stream after the screen fusion includes:
  • the process of creating the audio and video transmission channel may include:
  • the virtual device creation request carries screen fusion template information and device information to be melted, and the virtual device creation request is generated by the video signaling control center according to the screen fusion creation request sent by the dispatcher.
  • the video signaling control center can be represented by the video signaling control network element V-SIG.
  • the dispatching station sends a screen fusion creation request to the video signaling control center, where the screen fusion creation request carries the device information and screen fusion specification information to be melted and the media information of the dispatch station.
  • the screen melting device information refers to which camera-generated video needs screen melting operation.
  • the screen fusion specification information refers to the manner in which the screen fusion is performed, such as whether it is a 4-screen or a 16-frame, that is, the screen fusion specification information is the specifications of the screen fusion, such as the number of screen fusions, resolution, and other data.
  • the media information of the dispatching station refers to the SDP parameters of the dispatching station's session description protocol, such as the data of the dispatching station's transmission port and transmission protocol.
  • the video signaling control center After receiving the fusion screen creation request, the video signaling control center saves the fusion screen creation request, generates a virtual device creation request, and sends the virtual device creation request to the video server.
  • the virtual device creation request carries the screen melting template information and the device information to be melted.
  • the screen fusion template information is a screen fusion model determined by the video signaling control center according to the screen fusion specification information.
  • the information of the screen-to-be-fused device has been explained above, and will not be repeated here.
  • the video server creates a virtual screen fusion device according to the screen fusion template information in the virtual device creation request.
  • the virtual screen fusion device is used to synthesize multiple audio and video data streams to obtain one audio and video data stream.
  • the video server After creating the virtual screen melting device, the video server sends the device number of the created virtual screen melting device to the video signaling control center, and then the video signaling control center stores the device number of the virtual screen melting device.
  • the transmission channel creation request includes the media information of the dispatching station.
  • the video signaling control center After storing the device number of the virtual screen melting device, the video signaling control center generates a transmission channel creation request, and sends the transmission channel creation request to the video server.
  • the transmission channel creation request is to create a transmission channel between the video server and the dispatcher.
  • the audio and video transmission channel can perform data circulation.
  • the video server adds an audio and video transmission channel to the virtual screen melting device, and returns the channel number of the audio and video transmission channel and the media information of the video server to the video signaling control center.
  • the method further includes:
  • a streaming media transmission channel for data transmission with the camera device to be screen melted is established according to the information of the device to be screen melted.
  • the video server can directly communicate with the dispatching station.
  • the information of the device to be melted in the above step It has been determined which camera devices are used for screen fusion. At this time, a video server needs to be connected to these camera devices.
  • the camera device Before the video server is connected to the camera device, the camera device has been connected to the network, established a bearer with the local data exchange module, and registered in the video server.
  • the dispatching console controls each camera device through the video signaling control center. Since the camera device has been registered in the video server, the camera device will be connected to the video server at this time. At this time, the video server can be established with each A streaming media transmission channel for data transmission by the camera device to be screen-fused, that is, a video server can receive data sent by the camera device.
  • a process for creating an audio and video transmission channel for data circulation between a video server and a dispatcher is provided.
  • the audio and video transmission channel created in this embodiment can be used for video transmission, which can enable each camera to shoot Of the video directly reaches the dispatch station without going through the core network, reducing the pressure on the core network.
  • steps S23 and S24 in this embodiment are the specific implementation process of creating the audio and video transmission channel in the virtual screen melting device for data circulation with the dispatcher, in addition, other Means is used to create the audio and video transmission channel in the virtual screen melting device for data circulation with the dispatching station.
  • this embodiment discloses the creation process of the audio and video transmission channel.
  • the core network and the video server can communicate through another audio and video transmission channel.
  • the creation process of the audio and video transmission channel is similar to the creation process of the audio and video transmission channel described above. The difference is that the transmission channel creation request carries the media information of the core network, and the video signaling control center sends the media information of the video server to the core network.
  • the transmission channel creation request carries the media information of the core network
  • the video signaling control center sends the media information of the video server to the core network.
  • step S13 it may further include:
  • the audio and video data stream transmission after screen fusion When the audio and video data stream transmission after screen fusion is not required, receive the instruction of closing the virtual screen fusion device sent by the video signaling control center; wherein, the instruction of closing the virtual screen fusion device is the video signaling control center Generated after receiving the melting screen pull-up release request sent by the core network;
  • close the created virtual screen melting device close the created virtual screen melting device.
  • the dispatching station determines not to watch the video collected by the camera device, that is, when audio and video data streaming after melting the screen is not required, the dispatching station generates and issues a melting screen pull-up release request to the video signaling control center, Then, the video signaling control center generates and sends an instruction to close the virtual screen melting device to the video server, and the video server releases the created virtual screen melting device to complete the screen melting pull-up release.
  • the created virtual screen fusion device can be turned off, and then the video captured by each camera can be individually transmitted to the dispatching station.
  • Figure 3 describes the preparation work before the video transmission between the camera device and the video server.
  • the camera device may be a camera.
  • step S11 is executed.
  • the camera is registered in the video server.
  • the camera performs user registration with the video server, and the registration includes recording the login information and the login password of the camera into the video server.
  • the video signaling control center sends an instruction to control the opening of the camera device to the video server;
  • this instruction is used by the video server to control each camera to turn on.
  • the instruction to control the opening of the camera device is generated after the video signaling control center receives the instruction to open the camera sent by the dispatching station.
  • the camera and the video server establish a streaming media transmission channel
  • the video server establishes a streaming media transmission channel with each camera to be melted. Furthermore, the camera can perform video transmission with the video server.
  • the established streaming media transmission channel is a camera-base station-(L-GW)-video server channel.
  • the video server sends a response to open the camera to the video signaling control center;
  • the response is used to inform the video signaling control center that the camera has been turned on.
  • the video signaling control center sends a recording start instruction to the video server
  • the recording start instruction is sent after the video signaling control center receives the video recording instruction of the dispatching station.
  • the video server sends a recording start response to the video signaling control center.
  • the video signaling control center sends a recording start instruction to the video server.
  • the video server replies to the recording start response, and then the video server controls the camera to be melted to record video.
  • Figure 4 describes the process of creating audio and video transmission channels.
  • the dispatcher sends a screen fusion creation request to the video signaling control center;
  • the request is used to perform the screen melting operation.
  • the video signaling control center sends a virtual device creation request to the video server
  • the video server sends a response to open the virtual device to the video signaling control center;
  • the response includes the device number of the created virtual screen melting device.
  • the video signaling control center sends a transmission channel creation request to the video server
  • the video server sends a transmission channel creation response to the video signaling control center
  • the response includes the channel number of the transmission channel and the media information of the video server.
  • the video signaling control center sends a melting screen response to the dispatching station
  • the response includes media information of the video server.
  • the dispatcher After the dispatcher receives the media information of the video server, the video server and the dispatcher know each other's media information, and the two can communicate with each other.
  • the fusion screen image can be uploaded.
  • the video server Before uploading the fusion screen image, the video server has established a streaming media transmission channel with each camera to be melted screen.
  • performing multi-channel video fusion and other operations on the base station side can effectively save the transmission bandwidth between the base station and the core network, and reduce the cost of renting or constructing a transmission channel link.
  • audio and video do not need to be transmitted to the core network for processing, which can effectively relieve the processing pressure of the core network and significantly improve the overall audio and video processing efficiency.
  • the reliability of audio and video transmission can be improved.
  • another embodiment of the present invention provides a video transmission device, which is applied to a video server.
  • the device includes:
  • Video stream receiving module 101, for receiving multiple audio and video data streams sent by a local data exchange module; wherein each audio and video data stream is audio and video data received by the local data exchange module from a corresponding camera device Obtained in
  • the screen fusion module 102 is configured to perform screen fusion operations on a plurality of the audio and video data streams to obtain audio and video data streams after the screen fusion;
  • the video stream sending module 103 is configured to directly output the audio and video data stream after the screen fusion, or transmit the audio and video data stream after the screen fusion to the core network, so that the core network outputs the screen fusion After the audio and video data stream.
  • the audio and video data stream after the screen fusion can be directly transmitted to the dispatching station. In this case, it does not need to pass through the core network, thereby reducing the processing pressure of the core network.
  • the audio and video data stream after the screen fusion is transmitted to the core network, so that the core network sends the audio and video data stream after the screen fusion to the dispatching station, and the core network transmits the screen after the fusion Audio and video data.
  • the audio and video data after melting the screen is one audio and video data stream converted from multiple audio and video data streams.
  • the resources required to receive one audio and video data stream are less than those required to receive multiple audio and video data streams. Resources, in turn, can reduce the processing pressure of the core network.
  • the video stream sending module includes:
  • Output sub-module which is used to directly output the audio and video data stream after the screen fusion to the dispatching console through the audio and video transmission channel;
  • a request receiving module configured to receive a virtual device creation request sent by a video signaling control center; wherein, the virtual device creation request carries screen fusion template information and device information to be melted, and the virtual device creation request is the The video signaling control center is generated according to the screen fusion creation request sent by the dispatching station;
  • a creation module configured to create a virtual screen melting device according to the virtual device creation request, and send the device number of the created virtual screen melting device to the video signaling control center;
  • the channel establishment module is used to create the audio and video transmission channel for data circulation with the dispatching station in the virtual screen melting device.
  • the channel establishment module includes:
  • a request receiving unit configured to receive a transmission channel creation request sent by the video signaling control center; wherein, the transmission channel creation request includes media information of the dispatching station;
  • the channel creation unit is used to add the audio and video transmission channel that communicates with the dispatcher to the virtual screen melting device, and the channel number of the audio and video transmission channel and the media information of the video server Sent to the video signaling control center;
  • the audio and video transmission channel can perform data circulation.
  • the channel creation module is used to send the media information of the video server to the dispatching station after the video signaling control center, when the dispatching station controls each camera device through the video signaling control center to turn on, according to
  • the information of the screen-to-be-melted device establishes a streaming media transmission channel for data transmission with the camera device of each screen-to-be-melted.
  • a process for creating an audio and video transmission channel for data circulation between a video server and a dispatcher is provided.
  • the audio and video transmission channel created in this embodiment can be used for video transmission, which can enable each camera to shoot Of the video directly reaches the dispatch station without going through the core network, reducing the pressure on the core network.
  • the instruction receiving module is used by the video stream sending module to directly output the audio and video data stream after the screen fusion, or transmit the audio and video data stream after the screen fusion to the core network, so that the core network outputs After the audio and video data stream after the screen fusion, when the audio and video data stream after the screen fusion is not required to be received, an instruction to close the virtual screen fusion device sent by the video signaling control center is received;
  • the screen melting device instruction is generated after the video signaling control center receives the screen melting pull-up release request sent by the core network;
  • the closing module is configured to close the created virtual screen melting device according to the instruction to close the virtual screen melting device.
  • the created virtual screen fusion device can be turned off, and then the video captured by each camera can be individually transmitted to the dispatching station.
  • another embodiment of the present invention provides a video server, including: a processor, a sending port, and a receiving port;
  • the receiving port is configured to receive multiple audio and video data streams sent by the local data exchange module; wherein the audio and video data streams are obtained from the audio and video data received by the corresponding camera device by the local data exchange module;
  • the processor is configured to perform screen fusion operations on a plurality of the audio and video data streams to obtain audio and video data streams after the screen fusion;
  • the sending port is used to directly output the audio and video data stream after the screen fusion, or transmit the audio and video data stream after the screen fusion to the core network, so that the core network outputs the screen fusion Audio and video data stream.
  • the audio and video data stream after the screen fusion can be directly transmitted to the dispatching station. In this case, it does not need to pass through the core network, thereby reducing the processing pressure of the core network.
  • the audio and video data stream after the screen fusion is transmitted to the core network, so that the core network sends the audio and video data stream after the screen fusion to the dispatching station, and the core network transmits the screen after the fusion Audio and video data.
  • the audio and video data after melting the screen is one audio and video data stream converted from multiple audio and video data streams.
  • the resources required to receive one audio and video data stream are less than those required to receive multiple audio and video data streams. Resources, in turn, can reduce the processing pressure of the core network.
  • another embodiment of the present invention provides a video transmission system, including:
  • the local data exchange module is used to receive audio and video data sent by multiple camera devices, and obtain audio and video data streams from each audio and video data, and send the obtained multiple audio and video data streams to the video server;
  • the video server is configured to receive a plurality of audio and video data streams sent by a local data exchange module, perform screen fusion operations on the plurality of audio and video data streams, to obtain the audio and video data stream after the screen fusion, and merge the fusion
  • the audio and video data stream behind the screen is transmitted to the dispatching station;
  • the dispatching station is used to receive the audio and video data stream after the screen fusion directly or through the core network.
  • the audio and video data stream after the screen fusion can be directly transmitted to the dispatching station. In this case, it does not need to pass through the core network, thereby reducing the processing pressure of the core network.
  • the audio and video data stream after the screen fusion is transmitted to the core network, so that the core network sends the audio and video data stream after the screen fusion to the dispatching station, and the core network transmits the screen after the fusion Audio and video data.
  • the audio and video data after melting the screen is one audio and video data stream converted from multiple audio and video data streams.
  • the resources required to receive one audio and video data stream are less than those required to receive multiple audio and video data streams. Resources, in turn, can reduce the processing pressure of the core network.

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Abstract

本发明提供了一种视频传输的方法、装置、系统及服务器，本发明中可以直接将所述融屏后的音视频数据流传输到调度台，此时可以不经过核心网，进而能够降低核心网的处理压力。或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网将所述融屏后的音视频数据流发送到调度台，此时核心网传输的是融屏后的音视频数据，融屏后的音视频数据即是多路所述音视频数据流转化成的一路音视频数据流，接收一路音视频数据流所需要的资源小于接收多路音视频数据流所需的资源，进而也能够降低核心网的处理压力。

Description

一种视频传输的方法、装置、系统及服务器 技术领域
本发明涉及数据传输领域，更具体的说，涉及一种视频传输的方法、装置、系统及服务器。
背景技术
随着专网技术的不断发展，无线视频监控的应用越来越广泛。
无线视频监控的过程中，各个摄像头生成的视频流首先传输到基站，进而通过基站与核心网之间的链路传输到调度台上，进而能够在调度台上观看不同摄像头监控的视频。
当摄像头的数量较多时，每个摄像头生成的视频流都会经过核心网，进而使得核心网的处理压力较大，也会消耗较多的核心网资源。
发明内容
有鉴于此，本发明提供一种视频传输的方法、装置、系统及服务器，以解决当摄像头的数量较多时，每个摄像头生成的视频流都会经过核心网，进而使得核心网的处理压力较大，也会消耗较多的核心网资源的问题。
为解决上述技术问题，本发明采用了如下技术方案：
一种视频传输的方法，应用于视频服务器，所述方法包括：
接收本地数据交换模块发送的多个音视频数据流；其中，所述音视频数据流为所述本地数据交换模块从相应的摄像装置接收的音视频数据中获取得到；
对多个所述音视频数据流进行融屏操作，得到融屏后的音视频数据流；
将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流。
优选地，将所述融屏后的音视频数据流直接输出，包括：
将所述融屏后的音视频数据流通过音视频传输通道直接输出至调度 台；
所述音视频传输通道的创建过程包括：
接收视频信令控制中心发送的虚拟设备创建请求；其中，所述虚拟设备创建请求携带有融屏模板信息和待融屏设备信息、且所述虚拟设备创建请求为所述视频信令控制中心根据所述调度台发送的融屏创建请求生成的；
根据所述虚拟设备创建请求，创建虚拟融屏设备，并将创建的虚拟融屏设备的设备号发送给所述视频信令控制中心；
在所述虚拟融屏设备中创建与所述调度台进行数据流通的所述音视频传输通道。
优选地，在所述虚拟融屏设备中创建与所述调度台进行数据流通的所述音视频传输通道，包括：
接收所述视频信令控制中心发送的传输通道创建请求；其中，传输通道创建请求中包括所述调度台的媒体信息；
在所述虚拟融屏设备中添加与所述调度台进行数据流通的所述音视频传输通道，并将所述音视频传输通道的通道号以及所述视频服务器的媒体信息发送到所述视频信令控制中心；
其中，在所述视频信令控制中心将所述视频服务器的媒体信息发送至所述调度台后，所述音视频传输通道能够进行数据流通。
优选地，在所述视频信令控制中心将所述视频服务器的媒体信息发送至所述调度台后，还包括：
当调度台通过所述视频信令控制中心控制每个摄像装置开启后，根据所述待融屏设备信息，建立与每个待融屏的所述摄像装置进行数据传输的流媒体传输通道。
优选地，将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流之后，还包括：
当不需要进行融屏后的音视频数据流传输时，接收所述视频信令控制中心发送的关闭虚拟融屏设备指令；其中，所述关闭虚拟融屏设备指令为 所述视频信令控制中心接收到所述核心网发送的融屏上拉释放请求后生成的；
根据所述关闭虚拟融屏设备指令，关闭创建的所述虚拟融屏设备。
一种视频传输的装置，应用于视频服务器，所述装置包括：
视频流接收模块，用于接收本地数据交换模块发送的多个音视频数据流；其中，所述音视频数据流为所述本地数据交换模块从相应的摄像装置接收的音视频数据中获取得到；
融屏模块，用于对多个所述音视频数据流进行融屏操作，得到融屏后的音视频数据流；
视频流发送模块，用于将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流。
优选地，所述视频流发送模块包括：
输出子模块，用于将所述融屏后的音视频数据流通过音视频传输通道直接输出至调度台；
所述装置还包括：
请求接收模块，用于接收视频信令控制中心发送的虚拟设备创建请求；其中，所述虚拟设备创建请求携带有融屏模板信息和待融屏设备信息、且所述虚拟设备创建请求为所述视频信令控制中心根据所述调度台发送的融屏创建请求生成的；
创建模块，用于根据所述虚拟设备创建请求，创建虚拟融屏设备，并将创建的虚拟融屏设备的设备号发送给所述视频信令控制中心；
通道建立模块，用于在所述虚拟融屏设备中创建与所述调度台进行数据流通的所述音视频传输通道。
优选地，所述通道建立模块包括：
请求接收单元，用于接收所述视频信令控制中心发送的传输通道创建请求；其中，传输通道创建请求中包括所述调度台的媒体信息；
通道创建单元，用于在所述虚拟融屏设备中添加与所述调度台进行数据流通的所述音视频传输通道，并将所述音视频传输通道的通道号以及所 述视频服务器的媒体信息发送到所述视频信令控制中心；
其中，在所述视频信令控制中心将所述视频服务器的媒体信息发送至所述调度台后，所述音视频传输通道能够进行数据流通。
优选地，还包括：
通道创建模块，用于在所述视频信令控制中心将所述视频服务器的媒体信息发送至所述调度台后，当调度台通过所述视频信令控制中心控制每个摄像装置开启后，根据所述待融屏设备信息，建立与每个待融屏的所述摄像装置进行数据传输的流媒体传输通道。
优选地，还包括：
指令接收模块，用于所述视频流发送模块将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流之后，当不需要进行融屏后的音视频数据流传输时，接收所述视频信令控制中心发送的关闭虚拟融屏设备指令；其中，所述关闭虚拟融屏设备指令为所述视频信令控制中心接收到所述核心网发送的融屏上拉释放请求后生成的；
关闭模块，用于根据所述关闭虚拟融屏设备指令，关闭创建的所述虚拟融屏设备。
一种视频服务器，包括：处理器、发送端口和接收端口；
所述接收端口，用于接收本地数据交换模块发送的多个音视频数据流；其中，所述音视频数据流为所述本地数据交换模块从相应的摄像装置接收的音视频数据中获取得到；
所述处理器，用于对多个所述音视频数据流进行融屏操作，得到融屏后的音视频数据流；
所述发送端口，用于将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流。
一种视频传输的系统，包括：
本地数据交换模块、视频服务器和调度台；
其中，所述本地数据交换模块，用于接收多个摄像装置发送的音视频 数据，并从每个音视频数据中获取得到音视频数据流，将获取得到的多个音视频数据流发送到视频服务器；
所述视频服务器，用于接收本地数据交换模块发送的多个音视频数据流，对多个所述音视频数据流进行融屏操作，得到融屏后的音视频数据流，并将所述融屏后的音视频数据流传输到调度台；
所述调度台，用于直接或通过核心网接收所述融屏后的音视频数据流。
相较于现有技术，本发明具有以下有益效果：
本发明提供了一种视频传输的方法、装置、系统及服务器，本发明中可以直接将所述融屏后的音视频数据流传输到调度台，此时可以不经过核心网，进而能够降低核心网的处理压力。或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网将所述融屏后的音视频数据流发送到调度台，此时核心网传输的是融屏后的音视频数据，融屏后的音视频数据即是多路所述音视频数据流转化成的一路音视频数据流，接收一路音视频数据流所需要的资源小于接收多路音视频数据流所需的资源，进而也能够降低核心网的处理压力。
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，下面将对实施例或现有技术描述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的前提下，还可以根据这些附图获得其他的附图。
图1为本发明提供的一种视频传输的方法的方法流程图；
图2为本发明提供的另一种视频传输的方法的方法流程图；
图3为本发明提供的一种视频传输之前的操作流程图；
图4为本发明提供的一种音视频传输通道的创建流程图；
图5为本发明提供的一种视频传输的装置的结构示意图。
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。
本发明的实施例提供了一种视频传输的方法，应用于视频服务器。参照图1，所述视频传输的方法可以包括：
S11、接收本地数据交换模块发送的多个音视频数据流；
其中，所述音视频数据流为所述本地数据交换模块从相应的摄像装置接收的音视频数据中获取得到。本地数据交换模块可以用LIPA网关L-GW表示。
具体的，本地数据交换模块距离基站较近，摄像装置将采集的音视频数据通过通用移动通信技术的长期演进LTE空口发送给基站，进而基站将音视频数据发送到本地数据交换模块中。本地数据交换模块将接收的每个音视频数据去掉封装协议GTPU包头，取出音视频数据中的音视频流，即为本实施例中的音视频数据流。其中，摄像装置可以包括摄像头。
然后，本地数据交换模块将多个音视频数据流发送给视频服务器。其中，视频服务器设置在与本地数据交换模块基站较近的位置。
需要说明的是，基站接收哪几个摄像装置的音视频数据是由调度台决定的，调度台想要观看哪几个摄像装置拍摄的视频，基站就接收相应的摄像装置发送的音视频数据。
S12、对多个所述音视频数据流进行融屏操作，得到融屏后的音视频数据流；
具体的，对多个所述音视频数据流进行融屏操作，是指将多路的音视频数据流合成一路音视频数据流，即能够得到融屏后的音视频数据流。
此外，视频服务器接收到多个所述音视频数据后，还能够对多个所述音视频数据进行选频、叠频、压缩和本地存储的操作。
S13、将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音 视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流。
具体的，视频服务器可以直接与调度台通信，也可以通过核心网与调度台通信。
本实施例中，可以直接将所述融屏后的音视频数据流道传输到调度台，此时可以不经过核心网，进而能够降低核心网的处理压力。或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网将所述融屏后的音视频数据流发送到调度台，此时核心网传输的是融屏后的音视频数据，融屏后的音视频数据即是多路所述音视频数据流转化成的一路音视频数据流，接收一路音视频数据流所需要的资源小于接收多路音视频数据流所需的资源，进而也能够降低核心网的处理压力。
可选的，在上述视频传输的方法的基础上，将所述融屏后的音视频数据流直接输出，包括：
将所述融屏后的音视频数据流通过音视频传输通道直接输出至调度台；
另外，参照图2，所述音视频传输通道的创建过程可以包括：
S21、接收视频信令控制中心发送的虚拟设备创建请求；
其中，所述虚拟设备创建请求携带有融屏模板信息和待融屏设备信息、且所述虚拟设备创建请求为所述视频信令控制中心根据所述调度台发送的融屏创建请求生成的。视频信令控制中心可以用视频信令控制网元V-SIG表示。
具体的，调度台发送融屏创建请求到视频信令控制中心，其中，融屏创建请求中携带有待融屏设备信息和融屏规格信息以及调度台的媒体信息。
融屏设备信息是指哪些摄像装置生成的视频需要进行融屏操作。融屏规格信息是指以哪种方式进行融屏，如是以4画面还是16画面，即融屏规格信息为融屏的规格参数，如融屏个数、分辨率等数据。调度台的媒体信息是指调度台的会话描述协议SDP参数，如调度台的传输端口、传输协议等数据。
视频信令控制中心接收到融屏创建请求后，保存融屏创建请求，生成虚拟设备创建请求，并将虚拟设备创建请求发送到视频服务器。其中，虚拟设备创建请求携带有融屏模板信息和待融屏设备信息。其中，融屏模板信息是视频信令控制中心根据融屏规格信息确定的一个融屏模型。此外，待融屏设备信息在上面已经进行了解释说明，在此不再赘述。
S22、根据所述虚拟设备创建请求，创建虚拟融屏设备，并将创建的虚拟融屏设备的设备号发送给所述视频信令控制中心；
具体的，视频服务器根据虚拟设备创建请求中的融屏模板信息，创建虚拟融屏设备，该虚拟融屏设备用于将多路音视频数据流进行合成，得到一路音视频数据流。
视频服务器创建完虚拟融屏设备后，将创建的虚拟融屏设备的设备号发送给所述视频信令控制中心，进而视频信令控制中心保存虚拟融屏设备的设备号。
S23、接收所述视频信令控制中心发送的传输通道创建请求；
其中，传输通道创建请求中包括所述调度台的媒体信息。
具体的，视频信令控制中心保存虚拟融屏设备的设备号后，生成传输通道创建请求，并将传输通道创建请求发送到视频服务器。传输通道创建请求是为了创建视频服务器与调度台的传输通道。
S24、在所述虚拟融屏设备中添加与所述调度台进行数据流通的所述音视频传输通道，并将所述音视频传输通道的通道号以及所述视频服务器的媒体信息发送到所述视频信令控制中心；
其中，在所述视频信令控制中心将所述视频服务器的媒体信息发送至所述调度台后，所述音视频传输通道能够进行数据流通。
具体的，视频服务器在虚拟融屏设备中添加音视频传输通道，并将音视频传输通道的通道号以及所述视频服务器的媒体信息返回到所述视频信令控制中心。
可选的，在本实施例的基础上，在所述视频信令控制中心将所述视频服务器的媒体信息发送至所述调度台后，还包括：
当调度台通过所述视频信令控制中心控制每个摄像装置开启后，根据 所述待融屏设备信息，建立与每个待融屏的所述摄像装置进行数据传输的流媒体传输通道。
具体的，在所述视频信令控制中心将所述视频服务器的媒体信息发送至所述调度台后，视频服务器就可以直接和调度台进行通信，在上述的步骤中的待融屏设备信息中已经确定了哪些摄像装置进行融屏，此时，就需要视频服务器与这些摄像装置进行连接。
视频服务器与摄像装置进行连接之前，摄像装置已经连接网络、与本地数据交换模块建立承载、且在视频服务器中进行了注册。
此后，调度台通过视频信令控制中心控制每个摄像装置开启后，由于摄像装置已经在视频服务器进行了注册，此时摄像装置会连接到视频服务器，此时，视频服务器就能够建立与每个待融屏的所述摄像装置进行数据传输的流媒体传输通道，即视频服务器能够接收摄像装置发送的数据。
本实施例中，给出了一种创建视频服务器与调度台进行数据流通的音视频传输通道的过程，可以使用本实施例中创建的音视频传输通道进行视频传输，进而能够使得各个摄像装置拍摄的视频不经过核心网直接到达调度台，减轻核心网的压力。
需要说明的是，本实施例中的步骤S23和S24为在所述虚拟融屏设备中创建与所述调度台进行数据流通的所述音视频传输通道的具体实现过程，此外，还可以采用其他手段实现在所述虚拟融屏设备中创建与所述调度台进行数据流通的所述音视频传输通道。
此外，本实施例中公开了音视频传输通道的创建过程，核心网和视频服务器可以通过另一音视频传输通道通信，该音视频传输通道的创建过程与上述的音视频传输通道的创建过程类似，不同的是，传输通道创建请求中携带的是核心网的媒体信息，视频信令控制中心将视频服务器的媒体信息发送到核心网，其他步骤请参照上述音视频传输通道的创建过程。
可选的，在上一个实施例的基础上，步骤S13后，还可以包括：
当不需要进行融屏后的音视频数据流传输时，接收所述视频信令控制中心发送的关闭虚拟融屏设备指令；其中，所述关闭虚拟融屏设备指令为所述视频信令控制中心接收到所述核心网发送的融屏上拉释放请求后生成 的；
根据所述关闭虚拟融屏设备指令，关闭创建的所述虚拟融屏设备。
具体的，当调度台确定不观看摄像装置采集的视频时，即不需要进行融屏后的音视频数据流传输时，调度台生成并下发融屏上拉释放请求到视频信令控制中心，进而视频信令控制中心生成并发送关闭虚拟融屏设备指令到视频服务器，视频服务器释放创建的所述虚拟融屏设备，即可完成融屏上拉释放。
本实施例中，当不需要进行融屏操作时，能够关闭创建的虚拟融屏设备，进而各个摄像装置拍摄的视频可以单独传输到调度台。
为了本领域的技术人员能够更加清楚的了解本发明中的内容，现从多个设备进行交互的过程描述本方案，具体参照图3至图7。
图3介绍的是摄像装置与视频服务器进行视频传输之前的准备工作。其中，摄像装置可以为摄像头。
首先，摄像头需要通过基站与L-GW建立承载，建立承载完成后，执行步骤S11。
S11、摄像头在视频服务器中注册。
具体的，摄像头向视频服务器进行用户注册，注册包括将摄像头的登陆信息以及登陆密码记录到视频服务器中。
S12、视频信令控制中心向视频服务器发送控制摄像装置打开指令；
具体的，该指令用于视频服务器控制各个摄像头打开。
需要说明的是，控制摄像装置打开指令是视频信令控制中心在接收到调度台发送的摄像头开启指令后生成的。
S13、摄像头与视频服务器建立流媒体传输通道；
具体的，视频服务器与每个待融屏的摄像头建立流媒体传输通道。进而摄像头能够与视频服务器进行视频传输。
需要说明的是，建立的流媒体传输通道是摄像头-基站-(L-GW)-视频服务器的通道。
S14、视频服务器向视频信令控制中心发送打开摄像装置响应；
其中，该响应用于告知视频信令控制中心，摄像头已经开启了。
S15、视频信令控制中心向视频服务器发送录制启动指令；
其中，录制启动指令是在视频信令控制中心接收到调度台的视频录制指令后发送的。
S16、视频服务器向视频信令控制中心发送录制启动响应。
具体的，视频信令控制中心向视频服务器发送录制启动指令，此时，视频服务器回复录制启动响应，进而视频服务器控制待融屏的摄像头录制视频。
图4介绍的是音视频传输通道的创建过程。
在摄像头开启并且与视频服务器能够正常通信后，执行下述步骤。
S11、调度台发送融屏创建请求到视频信令控制中心；
其中，该请求用于执行融屏操作。
S12、视频信令控制中心向视频服务器发送虚拟设备创建请求；
S13、视频服务器向视频信令控制中心发送打开虚拟设备响应；
其中，该响应中包括创建的虚拟融屏设备的设备号。
S14、视频信令控制中心向视频服务器发送传输通道创建请求；
S15、视频服务器向视频信令控制中心发送传输通道创建响应；
其中，该响应中包括传输通道的通道号以及所述视频服务器的媒体信息。
S16、视频信令控制中心向调度台发送融屏响应；
其中，该响应中包括视频服务器的媒体信息。
调度台接收到视频服务器的媒体信息后，视频服务器与调度台互相知道对方的媒体信息，进而两者可以相互进行通信，
S17、融屏图像上传。
视频服务器与调度台相互之间可以通信后，就可以进行融屏图像的上传。
需要说明的是，在进行融屏图像的上传之前，视频服务器已经与各个待融屏的摄像头建立了流媒体传输通道。
本发明中，在基站侧进行多路视频的融屏等操作，能够有效节约基站到核心网之间的传输带宽，降低租用或建设传输通道链路的成本。通过在 基站侧进行录音录像，音视频无须传输到核心网进行处理，可以有效缓解核心网的处理压力，显著提升整体音视频的处理效率。并且，通过在基站侧进行音视频处理，能够提升音视频的传输可靠性。
在上述视频传输的方法的实施例的基础上，本发明的另一实施例中提供了一种视频传输的装置，应用于视频服务器，参照图5，所述装置包括：
视频流接收模,101，用于接收本地数据交换模块发送的多个音视频数据流；其中，每个所述音视频数据流为所述本地数据交换模块从相应的摄像装置接收的音视频数据中获取得到；
融屏模块102，用于对多个所述音视频数据流进行融屏操作，得到融屏后的音视频数据流；
视频流发送模块103，用于将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流。
本实施例中，可以直接将所述融屏后的音视频数据流传输到调度台，此时可以不经过核心网，进而能够降低核心网的处理压力。或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网将所述融屏后的音视频数据流发送到调度台，此时核心网传输的是融屏后的音视频数据，融屏后的音视频数据即是多路所述音视频数据流转化成的一路音视频数据流，接收一路音视频数据流所需要的资源小于接收多路音视频数据流所需的资源，进而也能够降低核心网的处理压力。
需要说明的是，本实施例中的各个模块的工作过程，请参照上述实施例中的相应说明，在此不再赘述。
可选的，在上述视频传输的装置的实施例的基础上，
所述视频流发送模块包括：
输出子模块，用于将所述融屏后的音视频数据流通过音视频传输通道直接输出至调度台；
进一步，还包括：
请求接收模块，用于接收视频信令控制中心发送的虚拟设备创建请求；其中，所述虚拟设备创建请求携带有融屏模板信息和待融屏设备信息、且 所述虚拟设备创建请求为所述视频信令控制中心根据所述调度台发送的融屏创建请求生成的；
创建模块，用于根据所述虚拟设备创建请求，创建虚拟融屏设备，并将创建的虚拟融屏设备的设备号发送给所述视频信令控制中心；
通道建立模块，用于在所述虚拟融屏设备中创建与所述调度台进行数据流通的所述音视频传输通道。
进一步，所述通道建立模块包括：
请求接收单元，用于接收所述视频信令控制中心发送的传输通道创建请求；其中，传输通道创建请求中包括所述调度台的媒体信息；
通道创建单元，用于在所述虚拟融屏设备中添加与所述调度台进行数据流通的所述音视频传输通道，并将所述音视频传输通道的通道号以及所述视频服务器的媒体信息发送到所述视频信令控制中心；
其中，在所述视频信令控制中心将所述视频服务器的媒体信息发送至所述调度台后，所述音视频传输通道能够进行数据流通。
进一步，还包括：
通道创建模块，用于在所述视频信令控制中心将所述视频服务器的媒体信息发送至所述调度台后，当调度台通过所述视频信令控制中心控制每个摄像装置开启后，根据所述待融屏设备信息，建立与每个待融屏的所述摄像装置进行数据传输的流媒体传输通道。
本实施例中，给出了一种创建视频服务器与调度台进行数据流通的音视频传输通道的过程，可以使用本实施例中创建的音视频传输通道进行视频传输，进而能够使得各个摄像装置拍摄的视频不经过核心网直接到达调度台，减轻核心网的压力。
需要说明的是，本实施例中的各个模块和单元的工作过程，请参照上述实施例中的相应说明，在此不再赘述。
可选的，在上个实施例的基础上，还包括：
指令接收模块，用于所述视频流发送模块将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流之后，当不需要进行融屏后的音视 频数据流传输时，接收所述视频信令控制中心发送的关闭虚拟融屏设备指令；其中，所述关闭虚拟融屏设备指令为所述视频信令控制中心接收到所述核心网发送的融屏上拉释放请求后生成的；
关闭模块，用于根据所述关闭虚拟融屏设备指令，关闭创建的所述虚拟融屏设备。
本实施例中，当不需要进行融屏操作时，能够关闭创建的虚拟融屏设备，进而各个摄像装置拍摄的视频可以单独传输到调度台。
需要说明的是，本实施例中的各个模块的工作过程，请参照上述实施例中的相应说明，在此不再赘述。
可选的，在上述应用于视频服务器的视频传输的方法及装置的实施例的基础上，本发明的另一实施例提供了一种视频服务器，包括：处理器、发送端口和接收端口；
所述接收端口，用于接收本地数据交换模块发送的多个音视频数据流；其中，所述音视频数据流为所述本地数据交换模块从相应的摄像装置接收的音视频数据中获取得到；
所述处理器，用于对多个所述音视频数据流进行融屏操作，得到融屏后的音视频数据流；
所述发送端口，用于将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流。
本实施例中，可以直接将所述融屏后的音视频数据流传输到调度台，此时可以不经过核心网，进而能够降低核心网的处理压力。或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网将所述融屏后的音视频数据流发送到调度台，此时核心网传输的是融屏后的音视频数据，融屏后的音视频数据即是多路所述音视频数据流转化成的一路音视频数据流，接收一路音视频数据流所需要的资源小于接收多路音视频数据流所需的资源，进而也能够降低核心网的处理压力。
可选的，在上述视频传输的方法及装置的实施例的基础上，本发明的另一实施例中提供了一种视频传输的系统，包括：
本地数据交换模块、视频服务器和调度台；
其中，所述本地数据交换模块，用于接收多个摄像装置发送的音视频数据，并从每个音视频数据中获取得到音视频数据流，将获取得到的多个音视频数据流发送到视频服务器；
所述视频服务器，用于接收本地数据交换模块发送的多个音视频数据流，对多个所述音视频数据流进行融屏操作，得到融屏后的音视频数据流，并将所述融屏后的音视频数据流传输到调度台；
所述调度台，用于直接或通过核心网接收所述融屏后的音视频数据流。
本实施例中，可以直接将所述融屏后的音视频数据流传输到调度台，此时可以不经过核心网，进而能够降低核心网的处理压力。或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网将所述融屏后的音视频数据流发送到调度台，此时核心网传输的是融屏后的音视频数据，融屏后的音视频数据即是多路所述音视频数据流转化成的一路音视频数据流，接收一路音视频数据流所需要的资源小于接收多路音视频数据流所需的资源，进而也能够降低核心网的处理压力。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (12)

  1. 一种视频传输的方法，其特征在于，应用于视频服务器，所述方法包括：
    接收本地数据交换模块发送的多个音视频数据流；其中，所述音视频数据流为所述本地数据交换模块从相应的摄像装置接收的音视频数据中获取得到；
    对多个所述音视频数据流进行融屏操作，得到融屏后的音视频数据流；
    将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流。
  2. 根据权利要求1所述的方法，其特征在于，将所述融屏后的音视频数据流直接输出，包括：
    将所述融屏后的音视频数据流通过音视频传输通道直接输出至调度台；
    所述音视频传输通道的创建过程包括：
    接收视频信令控制中心发送的虚拟设备创建请求；其中，所述虚拟设备创建请求携带有融屏模板信息和待融屏设备信息、且所述虚拟设备创建请求为所述视频信令控制中心根据所述调度台发送的融屏创建请求生成的；
    根据所述虚拟设备创建请求，创建虚拟融屏设备，并将创建的虚拟融屏设备的设备号发送给所述视频信令控制中心；
    在所述虚拟融屏设备中创建与所述调度台进行数据流通的所述音视频传输通道。
  3. 根据权利要求2所述的方法，其特征在于，在所述虚拟融屏设备中创建与所述调度台进行数据流通的所述音视频传输通道，包括：
    接收所述视频信令控制中心发送的传输通道创建请求；其中，传输通道创建请求中包括所述调度台的媒体信息；
    在所述虚拟融屏设备中添加与所述调度台进行数据流通的所述音视频传输通道，并将所述音视频传输通道的通道号以及所述视频服务器的媒体 信息发送到所述视频信令控制中心；
    其中，在所述视频信令控制中心将所述视频服务器的媒体信息发送至所述调度台后，所述音视频传输通道能够进行数据流通。
  4. 根据权利要求3所述的方法，其特征在于，在所述视频信令控制中心将所述视频服务器的媒体信息发送至所述调度台后，还包括：
    当调度台通过所述视频信令控制中心控制每个摄像装置开启后，根据所述待融屏设备信息，建立与每个待融屏的所述摄像装置进行数据传输的流媒体传输通道。
  5. 根据权利要求4所述的方法，其特征在于，将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流之后，还包括：
    当不需要进行融屏后的音视频数据流传输时，接收所述视频信令控制中心发送的关闭虚拟融屏设备指令；其中，所述关闭虚拟融屏设备指令为所述视频信令控制中心接收到所述核心网发送的融屏上拉释放请求后生成的；
    根据所述关闭虚拟融屏设备指令，关闭创建的所述虚拟融屏设备。
  6. 一种视频传输的装置，其特征在于，应用于视频服务器，所述装置包括：
    视频流接收模块，用于接收本地数据交换模块发送的多个音视频数据流；其中，所述音视频数据流为所述本地数据交换模块从相应的摄像装置接收的音视频数据中获取得到；
    融屏模块，用于对多个所述音视频数据流进行融屏操作，得到融屏后的音视频数据流；
    视频流发送模块，用于将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流。
  7. 根据权利要求6所述的装置，其特征在于，所述视频流发送模块包括：
    输出子模块，用于将所述融屏后的音视频数据流通过音视频传输通道 直接输出至调度台；
    所述装置还包括：
    请求接收模块，用于接收视频信令控制中心发送的虚拟设备创建请求；其中，所述虚拟设备创建请求携带有融屏模板信息和待融屏设备信息、且所述虚拟设备创建请求为所述视频信令控制中心根据所述调度台发送的融屏创建请求生成的；
    创建模块，用于根据所述虚拟设备创建请求，创建虚拟融屏设备，并将创建的虚拟融屏设备的设备号发送给所述视频信令控制中心；
    通道建立模块，用于在所述虚拟融屏设备中创建与所述调度台进行数据流通的所述音视频传输通道。
  8. 根据权利要求7所述的装置，其特征在于，所述通道建立模块包括：
    请求接收单元，用于接收所述视频信令控制中心发送的传输通道创建请求；其中，传输通道创建请求中包括所述调度台的媒体信息；
    通道创建单元，用于在所述虚拟融屏设备中添加与所述调度台进行数据流通的所述音视频传输通道，并将所述音视频传输通道的通道号以及所述视频服务器的媒体信息发送到所述视频信令控制中心；
    其中，在所述视频信令控制中心将所述视频服务器的媒体信息发送至所述调度台后，所述音视频传输通道能够进行数据流通。
  9. 根据权利要求8所述的装置，其特征在于，还包括：
    通道创建模块，用于在所述视频信令控制中心将所述视频服务器的媒体信息发送至所述调度台后，当调度台通过所述视频信令控制中心控制每个摄像装置开启后，根据所述待融屏设备信息，建立与每个待融屏的所述摄像装置进行数据传输的流媒体传输通道。
  10. 根据权利要求9所述的装置，其特征在于，还包括：
    指令接收模块，用于所述视频流发送模块将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流之后，当不需要进行融屏后的音视频数据流传输时，接收所述视频信令控制中心发送的关闭虚拟融屏设备指令；其中，所述关闭虚拟融屏设备指令为所述视频信令控制中心接收到所 述核心网发送的融屏上拉释放请求后生成的；
    关闭模块，用于根据所述关闭虚拟融屏设备指令，关闭创建的所述虚拟融屏设备。
  11. 一种视频服务器，其特征在于，包括：处理器、发送端口和接收端口；
    所述接收端口，用于接收本地数据交换模块发送的多个音视频数据流；其中，所述音视频数据流为所述本地数据交换模块从相应的摄像装置接收的音视频数据中获取得到；
    所述处理器，用于对多个所述音视频数据流进行融屏操作，得到融屏后的音视频数据流；
    所述发送端口，用于将所述融屏后的音视频数据流直接输出，或者将所述融屏后的音视频数据流传输到核心网，以使所述核心网输出所述融屏后的音视频数据流。
  12. 一种视频传输的系统，其特征在于，包括：
    本地数据交换模块、视频服务器和调度台；
    其中，所述本地数据交换模块，用于接收多个摄像装置发送的音视频数据，并从每个音视频数据中获取得到音视频数据流，将获取得到的多个音视频数据流发送到视频服务器；
    所述视频服务器，用于接收本地数据交换模块发送的多个音视频数据流，对多个所述音视频数据流进行融屏操作，得到融屏后的音视频数据流，并将所述融屏后的音视频数据流传输到调度台；
    所述调度台，用于直接或通过核心网接收所述融屏后的音视频数据流。
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CN202004911U (zh) * 2010-11-16 2011-10-05 北京图景佳科技有限公司 音频视频信号处理装置
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