WO2014183540A1 - 一种视频监控的内容适配方法、系统及中心服务器、装置 - Google Patents

一种视频监控的内容适配方法、系统及中心服务器、装置 Download PDF

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Publication number
WO2014183540A1
WO2014183540A1 PCT/CN2014/075879 CN2014075879W WO2014183540A1 WO 2014183540 A1 WO2014183540 A1 WO 2014183540A1 CN 2014075879 W CN2014075879 W CN 2014075879W WO 2014183540 A1 WO2014183540 A1 WO 2014183540A1
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WO
WIPO (PCT)
Prior art keywords
monitoring
client
video
monitoring client
capability parameter
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PCT/CN2014/075879
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English (en)
French (fr)
Inventor
王颖轩
叶小阳
邓硕
高燕
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP14798081.7A priority Critical patent/EP3059945A4/en
Publication of WO2014183540A1 publication Critical patent/WO2014183540A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19639Details of the system layout
    • G08B13/19641Multiple cameras having overlapping views on a single scene
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19654Details concerning communication with a camera
    • G08B13/19656Network used to communicate with a camera, e.g. WAN, LAN, Internet
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066Session management
    • H04L65/1069Session establishment or de-establishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60Network streaming of media packets
    • H04L65/61Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/612Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60Network streaming of media packets
    • H04L65/75Media network packet handling
    • H04L65/756Media network packet handling adapting media to device capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60Network streaming of media packets
    • H04L65/75Media network packet handling
    • H04L65/762Media network packet handling at the source 

Definitions

  • the present invention relates to the field of multimedia communications, and in particular, to a content adaptation method and system for video surveillance, and a central server and device.
  • video surveillance is widely used. As an effective security method, video surveillance is used in almost all industries. At the same time, most of the current applications and services are mainly targeted at enterprises or governments, and video surveillance provided by operators.
  • the service platform provides services, and all signaling and data are transmitted and distributed through the platform. In recent years, point-to-point for individuals or families
  • Video surveillance business is starting to rise. Different from the video surveillance business of government and enterprise, users can directly obtain images captured by the camera through the client without going through any video monitoring platform.
  • This type of camera can be an IP camera, a 3G/4G camera, or a mobile terminal with a camera.
  • FIG. 1 is a schematic diagram of a point-to-point video surveillance architecture.
  • the central server in the figure is mainly used for session management, authentication, maintenance and monitoring of front-end related information, and includes functions such as session initialization SIP server, Web server, and database.
  • the central server accesses the public network and has a fixed domain name and IP address.
  • the user client can access the central server through the Internet. After the authentication succeeds, the information of the monitoring front end that you want to access can be obtained and a session connection is established, and then the monitoring is obtained. Video data.
  • terminal devices tend to be diversified, and video surveillance clients are no longer limited to PCs, especially for mobile video surveillance and individual users.
  • Some mobile handheld devices can be used as monitoring clients, such as smart phones and tablets.
  • the user may access the surveillance video through the PC client at a certain time, and view the surveillance video through the mobile client at another time. Since the capabilities of different terminals vary according to the software and hardware configuration, the maximum resolution supported by the user is different. The parameters such as rate, audio and video format, and bit rate will be different, so the processing and playback effects of the monitor image may be affected.
  • the format, resolution, and code rate of the video data can be converted by means of transcoding or dual stream on the platform side to implement content for different types of terminals. adaptation. And for point-to-point monitoring without a video surveillance platform In the control service, there is no corresponding solution to adapt different terminals.
  • the technical problem to be solved by the embodiments of the present invention is to provide a video adaptation content adaptation method and system, and a central server and device, which can enable different terminals to adjust video according to different terminal capabilities when accessing the point-to-point video monitoring service. Format, resolution, code rate and other parameters enable better viewing on the client and expand the range of access terminals.
  • an embodiment of the present invention discloses a content adaptation method for video surveillance, where the method includes:
  • the monitoring front end receives the capability parameter information of the monitoring client through the central server, and the monitoring front end adjusts the parameter of the monitoring video according to the capability parameter information, and outputs the monitoring video after the parameter adjustment to the monitoring client.
  • the adjusting, by the monitoring front end, the parameter for adjusting the monitoring video according to the capability parameter information includes:
  • the monitoring front end performs real-time encoding on the monitoring video according to the capability parameter information of the monitoring client.
  • the capability parameter information of the monitoring client includes one or more of the following:
  • Monitors the maximum resolution supported by the client monitors the video formats supported by the client, and monitors the bit rate supported by the client.
  • the monitoring front end receiving the capability parameter information of the monitoring client by using the central server includes:
  • the monitoring client initiates a connection request to the central server, and requests to obtain an address of the monitoring front end, where the connection request includes capability parameter information of the monitoring client; and the central server receives the connection request. Then, the monitoring client is authenticated, and after the authentication succeeds, the capability parameter information of the monitoring client is sent to the monitoring front end of the request connection.
  • the central server when the central server sends the capability parameter information of the client to the monitoring front end of the request connection, the address of the monitoring front end is sent to the monitoring client.
  • the monitoring front end After the monitoring client connects to the monitoring front end through the address, the monitoring front end further adjusts parameters of the output video according to receiving the capability parameter information.
  • the method when the monitoring client requests to connect to the monitoring front end, if the monitoring front end has established a connection with another monitoring client, the method further includes:
  • the monitoring front end compares the priority of the monitoring client requesting the connection with the monitoring client that has established the connection;
  • the video parameters of the monitoring client with higher priority are adapted. If the priorities are the same, the video parameters are adapted according to the order of monitoring the access of the client.
  • the priority of the monitoring client is sent to the monitoring front end by using the central server.
  • the embodiment of the invention further discloses a monitoring front-end device for video monitoring, comprising:
  • the information collection module is configured to collect audio and video data of the monitored scene
  • the content adaptation module is configured to adjust the audio and video data collected by the information collection module according to the capability parameter information of the monitoring client;
  • the data sending module is configured to convert the audio and video data adjusted by the content adaptation module into digital media data that can be transmitted based on the IP packet and send the data to the monitoring client.
  • the content adaptation module is further configured to: adjust, according to the capability parameter information of the monitoring client, the audio and video data collected by the information collection module:
  • the content adaptation module is further configured to perform real-time encoding of the audio and video data collected by the information collection module according to the capability parameter information of the monitoring client.
  • the capability parameter information of the monitoring client includes one or more of the following:
  • Monitors the maximum resolution supported by the client monitors the video formats supported by the client, and monitors the bit rate supported by the client.
  • the foregoing apparatus further includes:
  • the comparison module is configured to compare the monitoring client requesting the connection with the established connection when the monitoring front-end device has established a connection with a monitoring client and received a connection request from another monitoring client.
  • the priority of the monitoring client is controlled. If the priorities are different, the content adaptation module controls the monitoring client with higher priority to first adapt the video parameters. If the priorities are the same, the content adaptation module controls the content. Monitor the order of client access to adapt video parameters.
  • the embodiment of the present invention further discloses a central server, including a SIP service function module and a data library, and a web service function module, which receives a connection request initiated by the monitoring client, and sends the capability parameter information of the monitoring client to the monitoring front-end device.
  • a central server including a SIP service function module and a data library, and a web service function module, which receives a connection request initiated by the monitoring client, and sends the capability parameter information of the monitoring client to the monitoring front-end device.
  • the embodiment of the invention also discloses a content adaptation system for video surveillance, comprising a client, such as the monitoring front-end device described above, and a central server as described above.
  • the present application proposes a content adaptation method, system and related device based on point-to-point video surveillance, and the monitoring client sends a connection request of a monitoring front end to the central server, and the request message includes the capability parameter of the client, including the Supported maximum resolution, video format, code rate, the central server receives the request and authenticates the client, then sends the client's capability parameters to the client to connect to the monitoring front end, and returns the monitoring front end to the client the address of. After receiving the capability parameter of the client, the monitoring front end adjusts the output video parameter according to the capability parameter, so that the output video is optimally played on the client.
  • the monitoring client establishes a connection with the monitoring front end through the central server return address, receives video data, and decodes and plays.
  • FIG. 1 is a schematic structural diagram of point-to-point video surveillance in related art
  • FIG. 2 is a flow chart of a content adaptation method based on point-to-point video surveillance according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a content adaptation system based on point-to-point video surveillance according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a monitoring front end according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a central server according to an embodiment of the present invention.
  • This embodiment provides a content adaptation method for video surveillance, including:
  • the monitoring front end receives the capability parameter information of the client through the central server, and the monitoring front end adjusts the parameters of the output video according to the acquired capability parameter information, and outputs the monitoring video after the parameter adjustment to the client.
  • the content adaptation process based on the above-mentioned point-to-point video surveillance is as shown in FIG. 2, and includes the following steps 201 to 204:
  • Step 201 The monitoring client initiates a connection request to the central server, and requests to obtain an address of a monitoring front end, where the connection request includes capability parameter information of the client;
  • the capability parameter information of the client includes at least one or more of the following:
  • the central server is connected to the public network and has a fixed domain name and IP address, which is convenient for monitoring client access.
  • the central server includes: a SIP server, a web server, and a database.
  • the SIP server provides management session connections;
  • the Web server provides Web access management functions for managing user logins, web access video monitoring services, etc.;
  • the database is used to store user data and to store information about the monitoring front end registered on the central server.
  • Step 202 After receiving the request, the central server authenticates the client, and after the authentication, sends the capability parameter of the client to the monitoring front end of the request connection, and sends the monitoring front end address to the client.
  • Step 203 The client connects to the monitoring front end through an address, and the monitoring front end adjusts the video parameter according to the received capability parameter and outputs the parameter to the client.
  • Step 204 The client receives and displays the video information after the adjustment parameter.
  • the above process is a case where a client initiates a connection request when there is no client connected to the monitoring front end.
  • a client A initiates a connection to a monitoring front end
  • a client B establishes a connection with the monitoring front end and obtains video data
  • the priority is set for each registered user in advance, when a monitoring front end has been Adapt and provide services to a user's client
  • the monitoring front end compares the priorities of the two clients, and adapts the video parameters to the clients of the higher priority users. If the priority is the same, the client accesses the same.
  • the order is adapted. The operation is as follows:
  • client A has established a connection with monitoring front end B, and the video parameters output by monitoring front end B are adapted according to the capabilities of client A.
  • another client C initiates a request to access the monitoring front-end B to the central server and adds its own capability parameter and priority parameter to the request, and the central service receives the request message, first authenticates the user, and authenticates the authentication.
  • the central server sends the capability parameter of the client C and the priority information of the user to the monitoring front end B, and the central server returns the address of the monitoring front end B to the client C.
  • the client C accesses the monitoring front end B according to the returned address, and the monitoring front end B receives the capability parameter of the client C sent by the central server and the user priority information, and compares it with the priority of the client A, if the client The user priority of the terminal C is higher than the user priority of the client A.
  • the monitoring front-end B adjusts the output video parameters and adapts according to the capability parameters of the client C. Otherwise, if the user priority of the client C is lower than or Equal to the user priority of client A, monitoring front end B does not change the output video parameters.
  • the present embodiment provides a content adaptation system based on point-to-point video surveillance.
  • the system includes at least: a monitoring front end 301, a central server 302, and a client 303;
  • the monitoring front end 301 is configured to collect video data, adjust video parameters according to the capability parameter information of the client, and send the adjusted video data to the client;
  • the central server 302 is configured to transmit the capability parameter information of the client to the monitoring front end; the central server receives the connection request used by the client to request connection to a monitoring front end, and authenticates the client and user information that initiates the connection request, After the authentication succeeds, the monitoring front end information is returned to the client, and the capability parameter of the client is sent to the monitoring front end.
  • the client 303 is configured to accept an operation instruction of the user, initiate an access request of the monitoring front end, and receive video data of the monitoring front end, and decode and play to the user.
  • the monitoring front end compares the client that requests the connection with the client that has established the connection. If the priority is different, the video parameters are adapted to the client with the higher priority. If the priorities are the same, the video parameters are adapted according to the order in which the clients access. The priority of the client is sent by the central server to the monitoring front end.
  • FIG. 4 is a schematic structural diagram of the monitoring front-end device. As shown in the figure, the monitoring front-end mainly includes an information collecting module 401, a data sending module 402, and an appropriate content. Matching module 403; wherein
  • the information collection module 401 is configured to mainly collect audio and video information and convert it into digital media that can be transmitted based on the IP packet;
  • the data sending module 402 is configured to send the video data adjusted by the content adaptation module to the client.
  • the content adaptation module 403 is configured to adjust the audio and video media parameters mainly according to the capability parameter information of the client.
  • the monitoring front-end device further includes a comparison module, and the module is configured to compare the request connection when the monitoring front-end device has established a connection with a client and receives a connection request from another client.
  • the priority of the client and the client that has established the connection if the priority is different, controlling the content adaptation module to first adapt the video parameter to the client with higher priority, if the priority is the same, the content is controlled
  • the adaptation module adapts the video parameters according to the order in which the clients access.
  • the priority of the client is sent by the central server to the monitoring front end.
  • FIG. 5 is a schematic structural diagram of the central server. As shown in the figure, the central server includes: a SIP server 501, a web server 502, and a database 503. among them,
  • the SIP server 501 is configured to receive a connection request initiated by the client, and provide a session connection management function.
  • the web server 502 is configured to provide a web access management function, log in to the user, pass The web access video monitoring service is managed, and the capability parameter information of the client is sent to the monitoring front end device;
  • the database 503 is configured to save the user data of the client (including the capability parameter information) and the information of the monitoring front-end device registered on the central server.
  • the present application provides a content adaptation method, system and related device based on point-to-point video surveillance.
  • the monitoring client sends a connection request of a monitoring front end to the central server, and the client's own capability parameter is added to the request message. , including the maximum resolution supported, the video format, the code rate, the central server receives the request and authenticates the client, and then sends the client's capability parameter to the client requesting to connect to the monitoring front end, and to the client Returns the address of the monitoring front end.
  • the monitoring front end After receiving the capability parameter of the client, the monitoring front end adjusts the output video parameter according to the capability parameter, so that the output video is optimally played on the client.
  • the monitoring client establishes a connection with the monitoring front end through the central server return address, receives video data, and decodes and plays.

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Abstract

本发明实施例公开了一种视频监控的内容适配方法、系统及中心服务器、装置,涉及多媒体通信领域。本发明实施例公开的方法包括:监控前端通过中心服务器接收监控客户端的能力参数信息,所述监控前端根据所述能力参数信息调整监控视频的参数,将调整参数后的监控视频输出给所述监控客户端。本发明实施例还公开了一种视频监控的监控前端装置、中心服务器及视频监控的内容适配系统。本申请使输出视频在客户端播放达到最佳效果。

Description

一种视频监控的内容适配方法、 系统及中心服务器、 装置
技术领域
本发明涉及多媒体通信领域, 尤其涉及一种视频监控的内容适配方法、 系统及中心服务器、 装置。
背景技术
目前, 视频监控的应用十分广泛, 作为一种有效的安防手段几乎所有行 业都会用到视频监控, 同时, 目前的绝大部分应用与业务主要还是针对企业 或政府, 并通过运营商提供的视频监控业务平台提供服务, 所有的信令和数 据都是经过平台传输与分发。 近年来, 针对个人或家庭的点到点
( point-to-point )视频监控业务开始兴起。 与政企类视频监控业务不同, 用户 可以通过客户端直接获取摄像头釆集的图像, 而不需要经过任何视频监控平 台。这类摄像头可以是 IP摄像头, 3G/4G摄像头,或是带摄像头的移动终端。
图 1是一个点到点视频监控的架构示意图, 图中的中心服务器主要用于 会话管理, 鉴权, 维护监控前端相关信息等, 并包括会话初始化 SIP服务器、 Web服务器、 数据库等功能。 中心服务器接入公网, 并拥有固定的域名和 IP 地址, 用户客户端可以通过 Internet访问中心服务器, 鉴权成功后可以获取到 想要访问的监控前端的信息并与其建立会话连接, 然后获取监控视频数据。
现在, 终端设备趋于多样化, 视频监控的客户端不再局限于 PC, 尤其是 针对移动视频监控和个人用户, 一些移动手持设备都可以作为监控客户端使 用, 例如智能手机、 平板电脑等。 用户可能在某个时间通过 PC客户端访问 监控视频, 而在另一个时间通过移动客户端查看监控视频, 由于不同的终端 其能力因其软硬件配置的差异会有所不同, 其支持的最大分辨率、 音视频格 式、码率等参数会有差异, 因此监控图像的处理和播放效果可能会受到影响。
对于通过视频监控平台提供服务的政企类业务而言, 可以通过平台侧进 行转码或双流等方式, 转换视频数据的格式、 分辨率、 码率等参数, 从而实 现对不同类型的终端进行内容适配。 而对于不存在视频监控平台的点到点监 控业务中, 还没有相应的解决方案对不同终端进行适配。
发明内容
本发明实施例所要解决的技术问题是, 提供一种视频监控的内容适配方 法、 系统及中心服务器、 装置, 能够使不同终端在接入点对点视频监控服务 时, 能根据不同的终端能力调整视频格式、 分辨率、 码率等参数, 使客户端 上获得更好的观看效果, 并扩大接入终端的范围。
为了解决上述技术问题, 本发明实施例公开了一种视频监控的内容适配 方法, 该方法包括:
监控前端通过中心服务器接收监控客户端的能力参数信息, 所述监控前 端根据所述能力参数信息调整监控视频的参数, 将调整参数后的监控视频输 出给所述监控客户端。
可选地, 上述方法中, 所述监控前端根据所述能力参数信息调整监控视 频的参数包括:
所述监控前端按照所述监控客户端的能力参数信息对监控视频进行实时 编码。
可选地, 上述方法中, 所述监控客户端的能力参数信息包括如下一种或 几种:
监控客户端所支持的最大分辨率、 监控客户端所支持的视频格式、 监控 客户端所支持的码率。
可选地, 上述方法中, 所述监控前端通过中心服务器接收监控客户端的 能力参数信息包括:
所述监控客户端向所述中心服务器发起连接请求, 请求获取所述监控前 端的地址, 其中, 所述连接请求中包含所述监控客户端的能力参数信息; 所述中心服务器接收到所述连接请求后, 对所述监控客户端进行鉴权, 鉴权成功后,将所述监控客户端的能力参数信息发送到请求连接的监控前端。
可选地, 上述方法中, 所述中心服务器将所述客户端的能力参数信息发 送到请求连接的监控前端时, 还将所述监控前端的地址发送到所述监控客户 端;
所述监控客户端通过所述地址连接所述监控前端后, 所述监控前端再根 据接收所述能力参数信息调整输出视频的参数。
可选地, 上述方法中, 所述监控客户端请求连接到所述监控前端时, 如 果所述监控前端已与其他监控客户端建立连接, 该方法还包括:
所述监控前端比较请求连接的监控客户端与已建立连接的监控客户端的 优先级;
如果优先级不同, 则对优先级较高的监控客户端进行视频参数的适配, 如果优先级相同, 则按监控客户端访问的先后顺序进行视频参数的适配。
可选地, 上述方法中, 所述监控客户端的优先级通过所述中心服务器发 送给所述监控前端。
本发明实施例还公开了一种视频监控的监控前端装置, 包括:
信息釆集模块, 设置为釆集所监控的场景的音视频数据;
内容适配模块, 设置为根据监控客户端的能力参数信息对所述信息釆集 模块釆集的音视频数据进行调整;
数据发送模块, 设置为将所述内容适配模块调整后的音视频数据转换为 可基于 IP包传送的数字媒体数据并发送到监控客户端。
可选地, 上述装置中, 所述内容适配模块, 还设置为根据监控客户端的 能力参数信息对所述信息釆集模块釆集的音视频数据进行调整指:
所述内容适配模块还设置为按照所述监控客户端的能力参数信息对对所 述信息釆集模块釆集的音视频数据进行实时编码。
可选地, 上述装置中, 所述监控客户端的能力参数信息包括如下一种或 几种:
监控客户端所支持的最大分辨率、 监控客户端所支持的视频格式、 监控 客户端所支持的码率。
可选地, 上述装置还包括:
比较模块, 设置为在本监控前端装置已与某一监控客户端建立连接, 又 收到其他监控客户端的连接请求时, 比较请求连接的监控客户端与已建立连 接的监控客户端的优先级, 如果优先级不同, 则控制所述内容适配模块对优 先级较高的监控客户端先进行视频参数的适配, 如果优先级相同, 则控制内 容适配模块按监控客户端访问的先后顺序进行视频参数的适配。
本发明实施例还公开了一种中心服务器, 包括 SIP服务功能模块和数据 库, 还包括: web服务功能模块, 接收监控客户端发起的连接请求, 将监控 客户端的能力参数信息发送给监控前端装置。
本发明实施例还公开了一种视频监控的内容适配系统, 包括客户端, 如 上所述的监控前端装置, 以及如上所述的中心服务器。
本申请提出一种基于点到点视频监控的内容适配方法、系统及相关装置, 监控客户端向中心服务器发出某一监控前端的连接请求, 请求消息中加入该 客户端自身能力参数, 包括所支持的最大分辨率、 视频格式、 码率, 中心服 务器接收到请求并对该客户端进行鉴权, 之后将客户端的能力参数发送至客 户端所请求连接到监控前端, 并向客户端返回监控前端的地址。 监控前端接 收到客户端的能力参数后, 根据该能力参数调整输出视频参数, 以使输出视 频在客户端播放达到最佳效果。 监控客户端通过中心服务器返回地址与监控 前端建立连接, 接收视频数据并解码播放。
附图概述
图 1为相关技术中点到点视频监控的架构示意图;
图 2为本发明实施例提出的一种基于点到点视频监控的内容适配方法流 程图;
图 3为本发明实施例提出的一种基于点到点视频监控的内容适配系统的 结构示意图;
图 4为本发明实施例提出的一种监控前端的结构示意图;
图 5为发明实施例提出的中心服务器的结构示意图。
本发明的较佳实施方式 下文将结合附图对本发明实施例技术方案作进一步详细说明。 在不冲突 的情况下 , 本申请的实施例和实施例中的特征可以任意相互组合。
实施例 1
本实施例提供一种视频监控的内容适配方法, 包括:
监控前端通过中心服务器接收客户端的能力参数信息, 监控前端根据所 获取的能力参数信息调整输出视频的参数, 并将调整参数后的监控视频输出 给客户端。
上述基于点到点视频监控的内容适配过程如图 2所示,包括如下步骤 201 至 204:
步骤 201 : 监控客户端向中心服务器发起连接请求, 请求获取某一监控 前端的地址, 该连接请求中包含客户端的能力参数信息;
客户端的能力参数信息, 至少包括如下一种或几种:
监控客户端本身所支持的最大分辨率、 视频格式、 码率。
其中, 中心服务器接入公网中, 并拥有固定的域名和 IP地址, 便于监控 客户端访问。 本实施例中, 中心服务器包括: SIP服务器, Web服务器, 数 据库。 SIP服务器提供管理会话连接; Web服务器提供 Web访问管理功能, 对用户的登录、 通过 Web访问视频监控服务等进行管理; 数据库用于保存用 户数据, 以及保存在中心服务器上注册的监控前端的信息。
步骤 202: 中心服务器接收到请求后对该客户端鉴权, 通过鉴权后将客 户端的能力参数发送到请求连接的监控前端, 同时将监控前端地址发送到客 户端。
步骤 203: 客户端通过地址连接监控前端, 该监控前端根据接收到的能 力参数调整视频的参数后输出给客户端。
步骤 204: 客户端接收并显示调整参数之后的视频信息。
以上流程是在监控前端无客户端与其连接时, 有一个客户端发起连接请 求的情况。 对于一个客户端 A向某个监控前端发起连接时, 已经有一个客户 端 B与该监控前端建立连接并获取视频数据的情况, 则预先对各个注册的用 户设定优先级, 当一个监控前端已对一个用户的客户端进行适配并提供服务 时, 另一个客户端又发起了访问请求, 则监控前端比较两个客户端的优先级, 对优先级较高的用户的客户端进行视频参数的适配; 如果优先级一样, 则按 客户端访问的先后顺序进行适配。 操作如下:
首先,假设客户端 A与监控前端 B已建立连接, 且监控前端 B输出的视 频参数是依据客户端 A的能力而适配的。 此时, 另一客户端 C向中心服务器 发起访问监控前端 B的请求并在请求中加入自己的能力参数及优先级参数, 中心服务收到请求消息, 先对该用户进行鉴权, 鉴权通过后, 中心服务器将 客户端 C的能力参数以及该用户的优先级信息发送到监控前端 B, 同时中心 服务器向客户端 C返回监控前端 B的地址。
下一步, 客户端 C根据返回的地址访问监控前端 B, 监控前端 B收到中 心服务器发送的客户端 C的能力参数以及用户优先级信息, 将其与客户端 A 的优先级进行比较,如果客户端 C的用户优先级高于客户端 A的用户优先级, 则监控前端 B调整输出的视频参数, 根据客户端 C的能力参数进行适配; 否 则, 如果客户端 C的用户优先级低于或等于客户端 A的用户优先级, 则监控 前端 B不更改输出的视频参数。
实施例 2
本实施例提出一种基于点到点视频监控的内容适配系统, 如图 3所示, 该系统至少包括: 监控前端 301 , 中心服务器 302, 客户端 303; 其中,
监控前端 301 , 设置为釆集视频数据, 根据客户端的能力参数信息调整 视频参数, 将调整后的视频数据发送到客户端;
中心服务器 302, 设置为将客户端的能力参数信息传递给监控前端; 中心服务器接收客户端用于请求连接到某一监控前端的连接请求, 并对 发起连接请求的客户端及用户信息进行鉴权, 在鉴权成功后, 向客户端返回 监控前端信息, 并向监控前端发送客户端的能力参数。
客户端 303 , 设置为接受用户的操作指令, 发起监控前端的访问请求, 并接收监控前端的视频数据, 解码后向用户播放。
优选地, 客户端请求连接到监控前端时, 如果监控前端已与其他客户端 建立连接, 监控前端则会比较请求连接的客户端与已建立连接的客户端的优 先级, 如果优先级不同, 则对优先级较高的客户端进行视频参数的适配, 如 果优先级相同, 则按客户端访问的先后顺序进行视频参数的适配。 其中, 客 户端的优先级是由中心服务器发送给监控前端的。
实施例 3
本实施例提出一种基于点到点视频监控的监控前端装置, 图 4为该监控 前端装置的结构示意图, 如图所示, 监控前端主要包括信息釆集模块 401、 数据发送模块 402、 内容适配模块 403; 其中,
信息釆集模块 401 , 设置为主要釆集音视频信息, 并将其转换为可基于 IP包传送的数字媒体;
数据发送模块 402, 设置为主要将内容适配模块调整后的视频数据发送 到客户端;
内容适配模块 403 , 设置为主要根据客户端的能力参数信息对音视频媒 体参数进行调整。
优选地, 在上述结构的基础上, 监控前端装置还包括比较模块, 该模块, 设置为在本监控前端装置已与某一客户端建立连接, 又收到其他客户端的连 接请求时, 比较请求连接的客户端与已建立连接的客户端的优先级, 如果优 先级不同, 则控制所述内容适配模块对优先级较高的客户端先进行视频参数 的适配, 如果优先级相同, 则控制内容适配模块按客户端访问的先后顺序进 行视频参数的适配。 其中, 客户端的优先级是由中心服务器发送给监控前端 的。
实施例 4
本实施例提出了一种基于点到点视频监控的中心服务器, 图 5为该中心 服务器结构示意图, 如图所示, 所述中心服务器包括: SIP服务器 501、 Web 服务器 502、 数据库 503。 其中,
SIP服务器 501 , 设置为主要接收客户端发起的连接请求, 提供会话连接 管理功能;
Web服务器 502, 设置为提供 Web访问管理功能, 对用户的登录、 通过 Web访问视频监控服务等进行管理, 并将客户端的能力参数信息发送给监控 前端装置;
数据库 503 , 设置为保存客户端的用户数据(包括能力参数信息) , 以 及在中心服务器上注册的监控前端装置的信息。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本申请不限制于任 何特定形式的硬件和软件的结合。
以上所述, 仅为本发明实施例的较佳实例而已, 并非用于限定本发明实 施例的保护范围。 凡在本发明实施例的精神和原则之内, 所做的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。
工业实用性 本申请提出一种基于点到点视频监控的内容适配方法、系统及相关装置, 监控客户端向中心服务器发出某一监控前端的连接请求, 请求消息中加入该 客户端自身能力参数, 包括所支持的最大分辨率、 视频格式、 码率, 中心服 务器接收到请求并对该客户端进行鉴权, 之后将客户端的能力参数发送至客 户端所请求连接到监控前端, 并向客户端返回监控前端的地址。 监控前端接 收到客户端的能力参数后, 根据该能力参数调整输出视频参数, 以使输出视 频在客户端播放达到最佳效果。 监控客户端通过中心服务器返回地址与监控 前端建立连接, 接收视频数据并解码播放。

Claims

权 利 要 求 书
1、 一种视频监控的内容适配方法, 该方法包括:
监控前端通过中心服务器接收监控客户端的能力参数信息, 所述监控前 端根据所述能力参数信息调整监控视频的参数, 将调整参数后的监控视频输 出给所述监控客户端。
2、 如权利要求 1所述的方法, 其中, 所述监控前端根据所述能力参数信 息调整监控视频的参数包括:
所述监控前端按照所述监控客户端的能力参数信息对监控视频进行实时 编码。
3、 如权利要求 1或 2所述的方法, 其中, 所述监控客户端的能力参数信 息包括如下一种或几种:
监控客户端所支持的最大分辨率、 监控客户端所支持的视频格式、 监控 客户端所支持的码率。
4、 如权利要求 3所述的方法, 其中, 所述监控前端通过中心服务器接收 监控客户端的能力参数信息包括:
所述监控客户端向所述中心服务器发起连接请求, 请求获取所述监控前 端的地址, 其中, 所述连接请求中包含所述监控客户端的能力参数信息; 所述中心服务器接收到所述连接请求后, 对所述监控客户端进行鉴权, 鉴权成功后,将所述监控客户端的能力参数信息发送到请求连接的监控前端。
5、 如权利要求 4所述的方法, 其中,
所述中心服务器将所述客户端的能力参数信息发送到请求连接的监控前 端时, 还将所述监控前端的地址发送到所述监控客户端;
所述监控客户端通过所述地址连接所述监控前端后, 所述监控前端再根 据接收所述能力参数信息调整输出视频的参数。
6、 如权利要求 4所述的方法, 其中, 所述监控客户端请求连接到所述监 控前端时, 如果所述监控前端已与其他监控客户端建立连接, 该方法还包括: 所述监控前端比较请求连接的监控客户端与已建立连接的监控客户端的 优先级;
如果优先级不同, 则对优先级较高的监控客户端进行视频参数的适配, 如果优先级相同, 则按监控客户端访问的先后顺序进行视频参数的适配。
7、 如权利要求 6所述的方法, 其中, 所述监控客户端的优先级通过所述 中心服务器发送给所述监控前端。
8、 一种视频监控的监控前端装置, 包括:
信息釆集模块, 设置为釆集所监控的场景的音视频数据;
内容适配模块, 设置为根据监控客户端的能力参数信息对所述信息釆集 模块釆集的音视频数据进行调整;
数据发送模块, 设置为将所述内容适配模块调整后的音视频数据转换为 可基于 IP包传送的数字媒体数据并发送到监控客户端。
9、 如权利要求 8所述的装置, 其中,
所述内容适配模块, 设置为根据监控客户端的能力参数信息对所述信息 釆集模块釆集的音视频数据进行调整指:
所述内容适配模块设置为按照所述监控客户端的能力参数信息对对所述 信息釆集模块釆集的音视频数据进行实时编码。
10、 如权利要求 8或 9所述的装置, 其中, 所述监控客户端的能力参数 信息包括如下一种或几种:
监控客户端所支持的最大分辨率、 监控客户端所支持的视频格式、 监控 客户端所支持的码率。
11、 如权利要求 10所述的装置, 其中, 所述监控前端装置还包括: 比较模块, 设置为在本监控前端装置已与某一监控客户端建立连接, 又 收到其他监控客户端的连接请求时, 比较请求连接的监控客户端与已建立连 接的监控客户端的优先级, 如果优先级不同, 则控制所述内容适配模块对优 先级较高的监控客户端先进行视频参数的适配, 如果优先级相同, 则控制内 容适配模块按监控客户端访问的先后顺序进行视频参数的适配。
12、 一种中心服务器, 包括 SIP服务功能模块和数据库, 其特征在于, 还包括:
web服务功能模块, 设置为接收监控客户端发起的连接请求, 将监控客 户端的能力参数信息发送给监控前端装置。
13、 一种视频监控的内容适配系统, 包括客户端, 其特征在于, 还包括 如权利要求 8至 11所述的监控前端装置, 以及如权利要求 12所述的中心服 务器。
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