KR20010085150A - Distributed internet broadcasting system using camera and screen capture - Google Patents

Distributed internet broadcasting system using camera and screen capture Download PDF

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Publication number
KR20010085150A
KR20010085150A KR1020000010262A KR20000010262A KR20010085150A KR 20010085150 A KR20010085150 A KR 20010085150A KR 1020000010262 A KR1020000010262 A KR 1020000010262A KR 20000010262 A KR20000010262 A KR 20000010262A KR 20010085150 A KR20010085150 A KR 20010085150A
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South Korea
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video
server processor
client
stream
receiver
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KR1020000010262A
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Korean (ko)
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김진현
김철우
강신준
주영배
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곽태영
주식회사 에이씨에스테크놀로지
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Priority to KR1020000010262A priority Critical patent/KR20010085150A/en
Priority to AU2001237749A priority patent/AU2001237749A1/en
Priority to PCT/KR2001/000297 priority patent/WO2001065396A1/en
Priority to JP2001564018A priority patent/JP3851975B2/en
Priority to KR10-2002-7007560A priority patent/KR100384757B1/en
Publication of KR20010085150A publication Critical patent/KR20010085150A/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/422Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/4223Cameras
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21Server components or server architectures
    • H04N21/218Source of audio or video content, e.g. local disk arrays
    • H04N21/2187Live feed
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2368Multiplexing of audio and video streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/434Disassembling 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
    • H04N21/4341Demultiplexing of audio and video streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/438Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4381Recovering the multiplex stream from a specific network, e.g. recovering MPEG packets from ATM cells
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/443OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/478Supplemental services, e.g. displaying phone caller identification, shopping application
    • H04N21/4788Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network 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 
    • H04N21/61Network physical structure; Signal processing
    • H04N21/6106Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6125Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network 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 
    • H04N21/63Control 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
    • H04N21/643Communication protocols
    • H04N21/64322IP
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81Monomedia components thereof
    • H04N21/8166Monomedia components thereof involving executable data, e.g. software
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85Assembly of content; Generation of multimedia applications
    • H04N21/854Content authoring
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/173Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309Transmission or handling of upstream communications
    • H04N7/17318Direct or substantially direct transmission and handling of requests
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/426Internal components of the client ; Characteristics thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management 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
    • H04N21/462Content 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
    • H04N21/4622Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet

Abstract

PURPOSE: A distributed Internet broadcasting system is provided to enable any user to broadcast contents, authored by himself or herself, over the Internet without other broadcasting equipments. CONSTITUTION: The system comprises a producer client(101), a broadcasting server(100), and a viewer client(102). The producer client(101) includes a raw display image capture module, a video encoder, and a transmitter. The raw display image capture module captures all the video screens executed in a real player or a media player. The video encoder codes the captured video data. The viewer client(102) includes a receiver, a video decoder, an audio decoder, a monitor, and a speaker. The receiver receives compressed video stream. The decoder decodes the video stream and displays the video on the monitor. The server includes a connection controller, a distribution main server processor, a distribution sub server processor, a receiver and a transmitter. The compressed stream is transmitted to the distribution main server processor via the receiver. The connection controller checks if the stream is effective, and controls the distribution main server processor. The distribution main server processor counts the number of the accessing viewer clients(102), and allocates the viewer clients(102) to the sub server processor.

Description

카메라와 화면 캡쳐를 이용한 인터넷 분산 방송 시스템{Distributed Internet broadcasting system using camera and screen capture}Distributed Internet broadcasting system using camera and screen capture

본 발명은 지리적으로 분산되어 있는 사용자들이 인터넷상에서 실시간으로 방송하는 시스템에 관한 것이다.The present invention relates to a system in which geographically dispersed users broadcast in real time on the Internet.

몇 년 전까지 해도 방송은 공중파와 케이블 TV의 두 분야로 발전해왔다. 하지만, 최근에 와서는 인터넷의 발전으로 인하여 새로운 방송의 개념이 등장하고 있다. 즉, 누구나 과거에 비해 적은 비용과 방송 장비를 가지고 인터넷을 통한 방송을 할 수 있는 시대가 도래하게 되었다. 이를 좀 더 현실적으로 말하면, 자신만의 내용을 갖고 쉽게 세계 곳곳의 누구에게나 전달할 수 있는 시대가 도래한 것이다.Until a few years ago, broadcasts had evolved into two areas: airwaves and cable television. However, recently, due to the development of the Internet, a new broadcasting concept has appeared. In other words, the era has come that everyone can broadcast over the Internet with less cost and broadcasting equipment than in the past. More realistically, the era has come that can be easily delivered to anyone around the world with its own content.

그러나, 이러한 인터넷 방송도 방송하는 사람의 입장에서 보면 종래보다 쉬워졌다고는 하지만, 아직도 초보자인 일반인에게는 접근하기 어렵다는 문제점을 안고 있다. 즉, 고속의 인터넷 전용 회선을 설치해야 하고, 고가장비도 구입해야 하는 등의 문제가 있다.However, even though such an Internet broadcast is easier than a conventional broadcaster's point of view, there is a problem that it is difficult to access to the general public who is still a beginner. That is, there is a problem that a high-speed Internet dedicated line must be installed, and expensive equipment must be purchased.

따라서, 본 발명자들은 이러한 문제점을 인식하고, 이를 해결하기 위해서 초보자인 사용자도 쉽게 방송 시스템을 구축할 수 있는 방법 및 그 구성을 제안하게 이르렀다.Accordingly, the present inventors have come to recognize such a problem and come up with a method and a configuration which can easily construct a broadcasting system even for a novice user.

이러한 본 발명에 따른 인터넷 방송 시스템이 인터넷상에서 널리 구축되어 활용되면, 누구나 자신이 저작한 내용을 인터넷을 통해 많은 여러 사람들에게 전달할 수 있게 될 것이다. 본 발명에 따른 인터넷 방송 시스템의 응용 분야의 예로서는 교육용 강의 시스템, 수 많은 사람들이 참여하여 방송을 구축하는 인터넷 방송국 등이 있을 수 있다.If the Internet broadcasting system according to the present invention is widely built and used on the Internet, anyone will be able to deliver the contents of their work to many different people through the Internet. An example of an application field of the Internet broadcasting system according to the present invention may be an educational lecture system, an internet broadcasting station in which a large number of people participate, and establish a broadcast.

따라서, 본 발명의 목적은 인터넷으로 연결된 사용자들이 쉽게 실시간 방송을 할 수 있는 방법 및 시스템을 제공하는 것이다.Accordingly, it is an object of the present invention to provide a method and a system in which users connected to the Internet can easily broadcast in real time.

본 발명의 제1 특징은 제작자 클라이언트(101), 방송 서버(100) 및 시청자 클라이언트(102)를 포함하는 인터넷 분산 방송시스템으로서, 상기 제작자 클라이언트(101)와 상기 시청자 클라이언트(102)가 지리적으로 서로 분리되어 있는 것이다.A first feature of the invention is an internet distributed broadcast system comprising a producer client 101, a broadcast server 100, and a viewer client 102, wherein the producer client 101 and the viewer client 102 are geographically different from each other. It is separate.

본 발명의 제2 특징은 실시간 방송을 위한 서버 구성에 관한 것이다.A second aspect of the invention relates to a server configuration for real time broadcasting.

본 발명의 제3 특징은 실시간 방송을 위한 클라이언트 구성에 관한 것이다.A third aspect of the invention relates to a client configuration for real time broadcasting.

본 발명의 제4 특징은 화면 캡쳐를 통한 비디오 압축 변환 기술에 관한 것이다.A fourth aspect of the invention relates to a video compression conversion technique through screen capture.

도 1은 본 발명에 따른 인터넷 분산 방송 시스템의 전체적인 시스템 구성도.1 is an overall system configuration of the Internet distributed broadcasting system according to the present invention.

도 2는 본 발명에 따른 방송 컨텐츠(contents)를 제작하여 방송하는 제작자 클라이언트의 상세 구성도.2 is a detailed configuration diagram of a producer client for producing and broadcasting broadcast contents according to the present invention.

도 3은 본 발명에 따른 방송을 시청하는 시청자 클라이언트의 구성도.3 is a block diagram of a viewer client watching a broadcast according to the present invention;

도 4는 본 발명에 따른 분산 방송 시스템의 서버 구성도.4 is a server configuration diagram of a distributed broadcasting system according to the present invention.

도 5는 도 4에 도시한 서버의 동작 순서를 도시한 플로우 차트.FIG. 5 is a flowchart showing an operation procedure of the server shown in FIG. 4. FIG.

도 6은 윈도우 화면 캡쳐의 모습과 그 플로우를 도시한 도면.Fig. 6 is a view showing the state of the window screen capture and the flow thereof.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

100 : 방송 서버100: broadcast server

101 : 제작자 클라이언트101: Creator Client

102 : 시청자 클라이언트102: viewer client

200 : 미디어 플레이어200: media player

이하에서는, 도면을 참조하여 본 발명을 구체적으로 설명하도록 한다.Hereinafter, the present invention will be described in detail with reference to the drawings.

도 1은 본 발명에 따른 인터넷 분산 방송 시스템의 전체적인 시스템 구성도로서, 인터넷으로 연결된 방송 서버(100), 제작자 클라이언트(101) 및 시청자 클라이언트(102)로 이루어져 있다. 제작자 클라이언트(101)가 자신의 오디오/비디오 컨텐츠(contents)를 만들어 서버로 전송하면, 서버(100)는 이 내용을 원하는 모든 시청자들(102)에게 여러 스트림으로 나누어 전송하게 된다. 여기서, 제작자 클라이언트(101)에서 방송 서버(100)로 전송되는 데이터의 양이 100kbps이고, 시청자의 수가 100명이면 방송 서버(100)에서 시청자 클라이언트(102)로 전송되는 데이터 스트림의 양은 100 ×100 = 10Mbps가 된다.1 is an overall system configuration diagram of an internet distributed broadcasting system according to the present invention, and includes a broadcast server 100, a producer client 101, and a viewer client 102 connected to the Internet. When the producer client 101 creates and transmits its own audio / video contents to the server, the server 100 transmits the contents in various streams to all desired viewers 102. Here, if the amount of data transmitted from the producer client 101 to the broadcast server 100 is 100kbps, and the number of viewers is 100, the amount of data stream transmitted from the broadcast server 100 to the viewer client 102 is 100 × 100. = 10 Mbps.

일반적으로 인터넷은 T1, T2, T3, ADSL, 케이블 네트워크(cable network),공중망(PSTN), 종합 정보 통신망(ISDN) 등으로 구성되어 있다. 서버의 위치는 ADSL을 제공하는 스위치(switch) 주위나 T1, T2, T3 등으로 연결되어 있는 곳이 좋다. 클라이언트의 경우는 특별한 제약이 없으나, 현실적으로 고속의 인터넷을 사용자에게 제공하는 것인 ADSL 또는 케이블 네트워크 회선을 사용하는 것이 가장 좋다. 이러한 환경을 가정한다면, 제작자 클라이언트(일반 사용자)(101)의 위치가 T1, T2, T3 등의 값비싼 고속 환경내에 있지 않아도 되기 때문에 사용자 누구나 방송을 할 수 있게 된다.In general, the Internet is composed of T1, T2, T3, ADSL, cable network, public network (PSTN), integrated information network (ISDN). The server's location should be near a switch that provides ADSL or connected to T1, T2, or T3. There is no particular limitation for clients, but it is best to use ADSL or cable network lines, which in reality provide high-speed Internet to users. Assuming such an environment, since the location of the producer client (general user) 101 does not have to be in an expensive high-speed environment such as T1, T2, T3, anyone can broadcast.

즉, 제작자 클라이언트(101)와 서버(100)가 위치적으로 독립되어 있을 수 있기 때문에, 클라이언트는 적은 업스트림(upstream)의 네트워크를 가지고도 방송을 할 수 있게 된다는 장점이 있다.In other words, since the producer client 101 and the server 100 can be located independently of each other, the client has an advantage of being able to broadcast even with a small upstream network.

도 2는 본 발명에 따른 방송 컨텐츠를 제작하여 방송하는 제작자 클라이언트(101)의 상세 구성도이다. 이 제작자 클라이언트(101)는 오디오와 비디오의 두 가지 스트림으로 구성된다. 그리고, 비디오 스트림 입력 방식에도 두 가지가 있는데, 통상의 카메라 입력 방식(201)과 윈도우 화면의 내용을 캡쳐하는 방식(202)이 그것이다. 일반 프로그램을 윈도우에 실행시킨 화면이나, 리얼 플레이어(real player) 또는 미디어 플레이어(media player) 등의 스트리밍 플레이어를 실행시킨 모든 비디오 화면을 로 디스플레이 이미지 캡춰부(raw display image capture)(202)에서 캡쳐한 후, 비디오 인코더(video encoder)(205)로 코딩(coding)하여 송신부(207)를 통해 서버로 보낸다.2 is a detailed configuration diagram of a producer client 101 for producing and broadcasting broadcast content according to the present invention. The producer client 101 consists of two streams, audio and video. There are two video stream input methods, a conventional camera input method 201 and a method 202 for capturing contents of a window screen. The raw display image capture unit 202 captures a screen running a general program in a window, or any video screen running a streaming player such as a real player or a media player. After that, the video is coded by a video encoder 205 and sent to the server through the transmitter 207.

이러한 방식은 윈도우에서 실행되는 모든 프로그램을 비디오 코덱(codec) 기술을 사용하여 전송함으로써, 미디어 플레이어 등의 다른 제조 회사의 제품에서 실행되는 비디오 스트림 기술을 자세히 알고 있을 필요 없이 모든 내용을 본 발명에 따른 코덱을 사용하여 방송함으로써 누구나 쉽게 자신의 컴퓨터에서 일어나는 모든 현상을 상대방에게 방송할 수 있다는 장점이 있다.This method uses the video codec technology to transfer all the programs running on Windows, so that all the content of the present invention can be read without having to know the details of the video stream technology running on the products of other manufacturers such as media players. By using a codec, anyone can easily broadcast to the other party any phenomenon that occurs on his or her computer.

오디오의 경우에 있어서도 전술한 비디오의 경우와 유사한 절차로 수행된다. 가장 널리 사용되고 있는 마이크(204) 외에 다른 프로그램에서 수행되어 출력된 오디오 스트림을 로 오디오 데이터 캡쳐부(raw audio data capture)(203)에서 캡쳐한 후, 오디오 코덱을 사용하여 데이터를 인코딩(압축)하여 송신부(207)를 통해 서버로 전송한다.In the case of audio, the same procedure as in the case of video described above is performed. After capturing an audio stream output from a program other than the most widely used microphone 204 using a raw audio data capture unit 203, data is encoded (compressed) using an audio codec. The transmitter 207 transmits the data to the server.

도 3은 시청자 클라이언트(102)의 구성을 도시한 도면으로서, 수신부(304), 비디오 디코더(300), 오디오 디코더(301), 화면(302), 스피커(303)로 이루어져 있다.3 is a diagram illustrating the configuration of the viewer client 102, and includes a receiver 304, a video decoder 300, an audio decoder 301, a screen 302, and a speaker 303.

여기서, 압축된 비디오 스트림을 수신부(304)에서 수신하면, 이 데이터는 비디오 디코더(300)에서 디코딩되어 화면에 디스플레이 된다. 또한, 압축된 오디오 스트림은 수신부(304)에서 수신하여 오디오 디코더(301)에서 디코딩되어 스피커로 출력된다.When the compressed video stream is received by the receiver 304, the data is decoded by the video decoder 300 and displayed on the screen. In addition, the compressed audio stream is received by the receiver 304, decoded by the audio decoder 301, and output to the speaker.

도 4는 본 발명에 따른 분산 방송 시스템의 서버 구성도로서, 연결 제어부(400), 분배 주서버 프로세서(401), 분배 부서버 프로세서(402)들, 수신부(403), 송신부(404)로 이루어진다.4 is a server configuration diagram of a distributed broadcasting system according to the present invention, and includes a connection controller 400, a distributed main server processor 401, distributed server processors 402, a receiver 403, and a transmitter 404. .

제작자 클라이언트(101)에서 압축된 스트림은 수신부(403)에 수신되어 분배주서버(401)로 전송된다. 연결 제어부(400)는 수신부(403)에서 수신된 스트림이 유효한지를 확인하여 분배 주서버 프로세서(401)를 동작시킨다. 분배 주서버 프로세서(401)에서는 시청자 클라이언트(102)의 개수를 확인하고 각각의 분배 부 서버 프로세서(402)로 보냄으로써 송신부(404)를 통해 시청자 클라이언트(102)에게 스트림들을 전송한다.The stream compressed by the producer client 101 is received by the receiver 403 and transmitted to the distribution host server 401. The connection controller 400 checks whether the stream received by the receiver 403 is valid and operates the distribution main server processor 401. The distribution main server processor 401 checks the number of viewer clients 102 and sends the streams to the viewer client 102 via the transmitter 404 by sending them to each distribution server processor 402.

도 5는 도 4에 도시한 서버의 동작 순서를 도시한 플로우 차트이다. 먼저, 단계(500)에서 분배 주서버(401)가 제작자 클라이언트(101)로부터 비디오/오디오 스트림을 수신한다. 이어서, 단계(501)에서는 수신된 스트림이 유효한지의 여부를 체크하여, 유효하지 않다고 하면 다시 시작 단계로 진입하고, 유효하면 단계(502)로 진입한다. 단계(502)에서는, 분배 주서버(401)가 분배 부서버(402)에게 스트림을 전송한다. 이어서, 단계(503)에서 분배 부서버(402)가 시청자 클라이언트(102)에게 스트림을 방송하게 된다.FIG. 5 is a flowchart showing an operation procedure of the server shown in FIG. 4. First, in step 500 the distribution main server 401 receives the video / audio stream from the producer client 101. Next, in step 501, it is checked whether the received stream is valid, and if it is not valid, enters the start step again, and if it is valid, enter step 502. In step 502, the distribution main server 401 transmits the stream to the distribution department 402. Subsequently, the distribution department 402 broadcasts the stream to the viewer client 102 in step 503.

도 6은 미디어 플레이어(200), 로 디스플레이 이미지 캡쳐(202), 비디오 인코더(205)의 내용을 나타낸 도면으로서 임의의 미디어 비디오 플레이어의 실행 화면(601)을 윈도우의 특정 영역을 나타내는 캡쳐 윈도우(600)를 통해 얻어낸 화면이다. 임의의 비디오 플레이어(602)는 단계(603)를 통하여 화면에 디스플레이를 행하고, 본 발명에서의 윈도우를 통해(600) 단계(604)에서 화면의 내용을 얻은 후, 단계(605)에서 H.263이나 MPEG 등의 비디오 코덱을 사용하여 데이터를 압축한다. 도 6에 도시한 바와 같이, 윈도우에서 실행할수 있는 모든 내용은 캡쳐 윈도우(600)를 통해 본 발명의 비디오 소스가 되기 때문에 소스(source)에 구애됨이 없이 저작 방송할 수 있는 장점이 있게 된다.6 is a diagram showing the contents of the media player 200, the raw display image capture 202, and the video encoder 205. The execution window 601 of any media video player is shown in the capture window 600 showing a specific area of the window. This is the screen obtained through). Any video player 602 performs display on the screen through step 603, obtains the content of the screen in step 604 through window 600 in the present invention, and then in step 605 the H.263 Compress the data using a video codec such as MPEG. As shown in FIG. 6, since all the contents that can be executed in the window become the video source of the present invention through the capture window 600, there is an advantage that the author can broadcast without regard to the source.

본 발명 따르면, 별도의 방송 장비 없이도 인터넷을 통한 방송을 할 수 있으며, 소스에 구애됨이 없이 방송을 할 수 있다는 장점이 있게 된다.According to the present invention, it is possible to broadcast through the Internet without a separate broadcast equipment, there is an advantage that can be broadcast without regard to the source.

Claims (1)

제작자 클라이언트(101), 방송 서버(100) 및 시청자 클라이언트(102)를 포함하는 인터넷 분산 방송시스템으로서, 상기 제작자 클라이언트(101)과 상기 시청자 클라이언트(102)는 지리적으로 서로 분리되어 있는 것을 특징으로 하는 인터넷 분산 방송 시스템.An internet distributed broadcasting system including a producer client 101, a broadcast server 100, and a viewer client 102, wherein the producer client 101 and the viewer client 102 are geographically separated from each other. Internet distributed broadcasting system.
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