CN101156444A - 用于视频音频信号传输的装置、网络设备及方法 - Google Patents
用于视频音频信号传输的装置、网络设备及方法 Download PDFInfo
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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
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/222—Secondary servers, e.g. proxy server, cable television Head-end
- H04N21/2225—Local VOD servers
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4341—Demultiplexing of audio and video streams
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
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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
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
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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
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/64322—IP
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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
- H04N21/654—Transmission by server directed to the client
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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
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/148—Interfacing a video terminal to a particular transmission medium, e.g. ISDN
Abstract
Description
Claims (1)
- 权利要求书1、 一种用于视频音频信号传输的装置, 其特征在于, 该装置包括: 接收解码模块、 视频同步模块和混音器; 其中,接收解码模块用于接收通过 IP 网络传送来的通话视频音频信号和 流媒体视频音频信号, 并分别对接收的通话视频音频信号和流媒体视频 音频信号进行解码, 解码后的视频信号输入到 ¾L频同步模块, 解码后的 音频信号输入到混音器;视频同步模块用于对接收的视频信号进行叠加和同步;混音器用于对接收的音频信号进行混合。2、 根据权利要求 1 所述的装置, 其特征在于, 所述的接收解码模 块包括: 接口模块、 第一视频解码模块、 第二视频解码模块、 第一音频 解码模块、 第二音频解码模块;接口模块用于把 IP网络传来的通话视频音频信号 ,以及流媒体视频 音频信号传送到对应的解码模块;第一视频解码模块用于对来自接口模块的通话视频信号进行解码, 并将解码后的视频信号输出到视频同步模块;第二视频解码模块用于对来自接口模块的流媒体视频信号进行解 码, 并将解码后的视频信号输出到视频同步模块;第一音频解码模块用于对来自接口模块的通话音频信号进行解码, 并将解码后的音频信号输出到混音器;第二音频解码模块用于对来自接口模块的流媒体音频信号进行解 码, 并将解码后的音频信号输出到混音器。3、 根据权利要求 1或 2所述的装置, 其特征在于, 所述视频同步 模块包括分别用来存放流媒体视频信号和通话视频信号的视频帧寄存 器, 所述任一帧寄存器被刷新, 便进行一次叠加输出; 若没有新数据输 入帧寄存器, 帧寄存器始终保存以前的视频信号。4、 一种网络设备, 其特征在于, 该网络设备包括: 接收解码模块、 视频同步模块和混音器; 其中,接收解码模块用于接收通过 IP 网络传送来的通话视频音频信号和 流媒体视频音频信号, 并分别对接收的通话视频音频信号和流媒体视频 音频信号进行解码, 解码后的视频信号输入到视频同步模块, 解码后的 音频信号输入到混音器;视频同步模块用于对接收的视频信号进行叠加和同步;混音器用于对接收的音频信号进行混合。5、 根据权利要求 4所述的网络设备, 其特征在于, 该网络设备为 可视终端。6、 根据权利要求 5 所述的网络设备, 其特征在于, 所述可视终端 中进一步包括: 显示屏和声音播放设备;则所述视频同步模块将经过叠加同步的视频信号输入可视终端的 显示屏; 所述的混音器将经过混音的音频信号输入可视终端的声音播放 设备。7、 根据权利要求 6所述的网络设备, 其特征在于, 所述视频同步 模块根据用户输入的指令选择同步叠加方式; 所述的混音器根据用户输 入的指令选择混音方式。8、 根据权利要求 4所述的网络设备, 其特征在于, 所述网络设备 设置于网络侧。9、 根据权利要求 8 所述的网络设备, 其特征在于, 该网络设备中 进一步包括: 视频编码模块、 音频编码模块和接口模块;所述视频同步模块输出的视频信号输入视频编码模块; 所述混音器 输出的音频信号输入音频编码模块; 所述的视频编码模块和音频编码模 块分别将所输出的视频信号和音频信号通过接口模块发送到可视终端。10、 根据权利要求 4所述的网络设备, 其特征在于, 所述的接收解 码模块包括: 接口模块、 第一视频解码模块、 第二视频解码模块、 第一 音频解码模块、 第二音频解码模块;接口模块用于把 ip网络传来的通话视频音频信号,以及流媒体视频 音频信号传送到对应的解码模块;第一视频解码模块用于对来自接口模块的通话视频信号进行解码, 并将解码后的视频信号输出到视频同步模块;第二视频解码模块用于对来自接口模块的流媒体视频信号进行解 码, 并将解码后的视频信号输出到视频同步模块;第一音频解码模块用于对来自接口模块的通话音频信号进行解码, 并将解码后的音频信号输出到混音器;第二音频解码模块用于对来自接口模块的流媒体音频信号进行解 码, 并将解码后的音频信号输出到混音器。11、 根据权利要求 4或 10所述的网络设备, 其特征在于, 所述视 频同步模块包括分别用来存放流媒体视频信号和通话视频信号的视频 帧寄存器, 所述任一帧寄存器被刷新, 便进行一次叠加输出; 若没有新 数据输入帧寄存器, 帧寄存器始终保存以前的视频信号。12、一种用于视频音频信号传输的方法, 其特征在于, 该方法包括: 将呼叫中发送给可视终端的视频音频信号, 与流媒体服务器发送给 所述可视终端的视频音频信号, 进行视频叠加同步和音频混音后, 通过 所述可视终端播放给用户。13、 根据权利要求 12所述的方法, 其特征在于, 所述将呼叫中发 送给可视终端的视频音频信号, 与流媒体服务器发送给所述可视终端的 视频音频信号, 进行视频叠加同步和音频混音为:所述可视终端接收来自通话对端的视频音频信号, 与流媒体服务器 发送给所述可视终端的视频音频信号, 对接收的两路视频信号进行叠加 和同步, 并对接收的两路音频信号进行混音。14、 根据权利要求 13 所述的方法, 其特征在于, 该方法进一步包 括: 用户向所述可视终端发送工作方式指令, 所述可视终端根据接收的 工作方式指令确定工作方式。15、 根据权利要求 12所述的方法, 其特征在于, 所述将呼叫中发 送给可视终端的视频音频信号, 与流媒体服务器发送给所述可视终端的 视频音频信号, 进行视频叠加同步和混音为:呼叫中的所述可视终端通知通话对端将呼叫中的视频音频信号发 送给网络侧设置的数据合成服务器, 通知流媒体服务器将发送给所述可 视终端的视频音频信号发送给数据合成服务器;所述数据合成服务器接收呼叫中的视频音频信号与流媒体服务器 发送给所述可视终端的视频音频信号, 并对接收的两路视频信号进行叠 加和同步, 对接收的两路音频信号进行混音;则所述通过可视终端播放给用户包括:所述数据合成服务器将叠加和同步后的视频信号以及混音后的音 频信号, 分别进行编码后, 发送给所述可视终端, 所述可视终端将接收 到视频信号和音频信号播放给用户。16、 才 M居权利要求 15 所述的方法, 其特征在于, 该方法进一步包 括: 用户通过可视终端向所述数据合成服务器发送工作方式指令, 所述 数据合成服务器根据接收的工作方式指令确定工作方式。
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CN200610033169.2 | 2006-01-18 | ||
CNB2006100331692A CN100531382C (zh) | 2006-01-18 | 2006-01-18 | 一种用于可视电话视频音频信号传输的装置及方法 |
PCT/CN2006/002757 WO2007082433A1 (fr) | 2006-01-18 | 2006-10-18 | Appareil, dispositif de réseau et procédé de transmission de signaux audio et vidéo |
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CN200680011737A Expired - Fee Related CN100579196C (zh) | 2006-01-18 | 2006-10-18 | 用于视频音频信号传输的装置、网络设备及方法 |
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EP (1) | EP1976290A4 (zh) |
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- 2006-01-18 CN CNB2006100331692A patent/CN100531382C/zh not_active Expired - Fee Related
- 2006-10-18 EP EP06804975A patent/EP1976290A4/en not_active Ceased
- 2006-10-18 CN CN200680011737A patent/CN100579196C/zh not_active Expired - Fee Related
- 2006-10-18 WO PCT/CN2006/002757 patent/WO2007082433A1/zh active Application Filing
- 2006-12-18 US US11/612,110 patent/US7973859B2/en active Active
- 2006-12-18 FR FR0655605A patent/FR2896372B1/fr active Active
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CN101282386B (zh) * | 2008-05-22 | 2010-11-10 | 中山大学 | 一种voip服务器端同步混音转发方法 |
CN112533056A (zh) * | 2019-09-17 | 2021-03-19 | 海信视像科技股份有限公司 | 一种显示设备及声音再现方法 |
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US7973859B2 (en) | 2011-07-05 |
CN100579196C (zh) | 2010-01-06 |
US20070169156A1 (en) | 2007-07-19 |
EP1976290A4 (en) | 2009-12-02 |
CN100531382C (zh) | 2009-08-19 |
FR2896372B1 (fr) | 2011-05-27 |
EP1976290A1 (en) | 2008-10-01 |
CN1859566A (zh) | 2006-11-08 |
FR2896372A1 (fr) | 2007-07-20 |
WO2007082433A1 (fr) | 2007-07-26 |
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