• Title, Summary, Keyword: Live Video Streaming

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A Vulnerability Analysis of Paid Live Streaming Services Using Their Android Applications (안드로이드 앱을 이용한 실시간 유료 방송 취약점 분석)

  • Choi, Hyunjae;Kim, Hyoungshick
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.26 no.6
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    • pp.1505-1511
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    • 2016
  • Live streaming is a method to provide media service by sending recoded media to a user's video player. In order to provide video and audio contents in real-time for a large number of users simultaneously, live streaming compatible protocols such as RTMP (Real Time Messaging Protocol), HLS (Http Live Streaming), are required. In this paper, we analyzed vulnerability of paid live streaming services with the captured packets from the applications used by six major OTT (over-the-top) companies in Korea supporting live streaming services. We found that streaming channels were not encrypted and access control mechanisms were not properly used. Thus, guest users can freely use paid live streaming services.

Implementation of MPEG-DASH based Low-Latency Live 360 VR Tiled Video Streaming Server (MPEG-DASH 기반 저지연 라이브 360 VR 분할영상 스트리밍 서버 구현)

  • Kim, Hyun Wook;Choi, U Sung;Yang, Sung Hyun
    • Journal of Broadcast Engineering
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    • v.23 no.4
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    • pp.549-558
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    • 2018
  • We designed and implemented streaming server based on MEPG DASH, which is able to provide high quality video with low-latency live streaming service like 360 VR video on the existing cable network via low-spec media service devices such as IPTV and OTT(Over the Top) SettopBox. We also designed and applied management process which is cable of supporting services by cashing streaming video file(MPD, Segment Files) to reduce the server response delay time. Further more, we confimred that it is also able to provide high quality of tiled video streaming with over 50,000kbps bitrate and 8K@60P through the experiment.

The Study on the Development of the Realtime HD(High Definition) Level Video Streaming Transmitter Supporting the Multi-platform (다중 플랫폼 지원 실시간 HD급 영상 전송기 개발에 관한 연구)

  • Lee, JaeHee;Seo, ChangJin
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.65 no.4
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    • pp.326-334
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    • 2016
  • In this paper for developing and implementing the realtime HD level video streaming transmitter which is operated on the multi-platform in all network and client environment compared to the exist video live streaming transmitter. We design the realtime HD level video streaming transmitter supporting the multi-platform using the TMS320DM386 video processor of T.I company and then porting the Linux kernel 2.6.29 and implementing the RTSP(Real Time Streaming Protocol)/RTP(Real Time Transport Protocol), HLS(Http Live Streaming), RTMP(Real Time Messaging Protocol) that can support the multi-platform of video stream protocol of the received equipments (smart phone, tablet PC, notebook etc.). For proving the performance of developed video streaming transmitter, we make the testing environment for testing the performance of streaming transmitter using the notebook, iPad, android Phone, and then analysis the received video in the client displayer. In this paper, we suggest the developed the Realtime HD(High Definition) level Video Streaming transmitter performance data values higher than the exist products.

Implementation of Multi-Streaming System of Live Video of Drone (드론 라이브 영상의 다중 스트리밍 시스템 구현)

  • Hwang, Kitae;Kim, Jina;Choi, Yongseok;Kim, Joonhee;Kim, Hyungmin;Jung, Inhwan
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.18 no.1
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    • pp.143-149
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    • 2018
  • This paper presents an implementation of a streaming system which can forward live video stream to multiple users from a Phantom4, which is a drone made by DJI. We constructed the streaming server on Raspberry Pi 3 board for high mobility. Also We implemented the system so that the video stream can be played on any devices if the HTML5 standard web browser is utilized. We compiled C codes of FFmpeg open sources and installed in the Raspberry Pi3 as the streaming server and developed a Java application to execute as the integrated server that controls the other softwares on the streaming server. Also we developed an Android application which receives the live video stream from the drone and sends the streaming server continuously. The implemented system in this paper can successfully stream the live video on 24 frames per second at the resolution of 148x112 in considering the low hardware throughput of the streaming server.

Implementation of Live Streaming Server for Video Commerce using Open source projects (오픈 소스를 활용한 비디오 커머스용 라이브 스트리밍 서버 구축)

  • Phong, Nguyen Ho Hong;Choi, Jongmyung
    • Proceedings of the Korea Contents Association Conference
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    • pp.405-406
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    • 2017
  • With the advance of ICT technology, E-Commerce is getting popular and used widely in daily life. Nowaday's commercial videos are also being used extensively to introduce commercial products to consumers. Most commercial companies are advertising their products on the internet with images and videos through online sharing sites. Putting pre-recorded videos online is easy, but it is difficult for sellers to interact with customers. Live Streaming is the transmission of digital content directly to the Internet in real time. Although there are many services available that provide live streaming on the internet, most are limited in the content they transmit. Building live streaming servers using open source projects will help users master the content which conveys to their customers. In this paper, we will consider implementation of Live Streaming Server for Video Commerce using Open Source.

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An Adaptive Buffering Method for Practical HTTP Live Streaming on Smart OTT STBs

  • Kim, Hyun-Sik;Kim, Inki;Han, Kyungsik;Kim, Donghyun;Seo, Jong-Soo;Kang, Mingoo
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.10 no.3
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    • pp.1416-1428
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    • 2016
  • In this paper, we address the channel zapping time problem of video streaming services based on HTTP Live Streaming (HLS) on smart Over-The-Top Set-Top Boxes (OTT STBs). Experimental analysis of the channel zapping time, show that smart OTT STBs inevitably suffer from the accumulated zapping time through channel change request, Internet Group Management Protocol (IGMP) leave/join, synchronization delay, video buffer delay, and STB processing delay when providing HLS services. As a practical solution for the zapping time reduction, an adaptive buffering method is proposed. The proposed method exploits two adaptive buffers added to the basic HLS player. These two adaptive buffers are responsible for constantly buffering previous and next channels relative to the current channel. Implementation and test results show that a stable zapping time less than one second can be achieved even under diverse video bitrate changes and varying network conditions by the proposed adaptive buffering method.

A Study on the implementation of a Portable Http Live Streaming Transmitter (휴대용 Http 라이브 스트리밍 전송기 구현에 관한 연구)

  • Cho, Tae-Kyung;Lee, Jea-Hee
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.63 no.3
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    • pp.206-211
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    • 2014
  • In this Paper, We proposed the HLS(Http Live Streaming) transmitter which is operated easily and cheap in all networks and client environments compared to the exist video live streaming transmitter. We analyzed the HLS protocol and then implemented for making the HLS transmitter cheaper and portable. After designing the HLS transmitter hardware using the RISC processor of Arm11 core, we ported the Linux Operating System and implemented the HLS protocol using the open source FFmpeg and Segmenter. For the performance evaluation of the developed HLS transmitter, we made the testing environment which is including the notebook, iPhone, and aroid Phone. In this testing environment, we analysed the received video data at the client displayer. As a results of the performance evaluation, we could certify that the proposed HLS transmitter has a higher performance than the Apple company's HLS.

The moderating role of motivations in problematic use of online gaming: A study of live streaming viewers of Twitch

  • Chen, Chi-Ying;Chang, Shao-Liang
    • International Journal of Internet, Broadcasting and Communication
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    • v.11 no.2
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    • pp.84-92
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    • 2019
  • While the Internet continues to integrate with modern lives, the risks of negative outcomes resulting from problematic use (PU) are also increasing. Although psychological well-being and use motivations have been shown to play major roles in Internet PU, understanding the moderating mechanism is critical for advanced knowledge. The present study employed survey data from users of a live video-game streaming service (LVGS) that is an area rarely been studied. Result concluded a positive moderating effect of escapism motive (EM) on the association between loneliness and the PU of LVGS, while the moderating mechanism between EM and stress was not indicated. A moderating effect of information seeking (IS) on the relationship between stress and the PU of LVGS was found negative, but no mechanism between IS and loneliness was indicated. This study highlights how the interplay of different motivation and pathologies may induce or prevent video-game-related addiction.

Implementation of a unified live streaming based on HTML5 for an IP camera (IP 카메라를 위한 HTML5 기반 통합형 Live Streaming 구현)

  • Ryu, Hong-Nam;Yang, Gil-Jin;Kim, Jong-Hun;Choi, Byoung-Wook
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.28 no.9
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    • pp.99-104
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    • 2014
  • This paper presents a unified live-streaming method based on Hypertext Mark-up Language 5(HTML5) for an IP camera which is independent of browsers of clients and is implemented with open-source libraries. Currently, conventional security systems based on analog CCTV cameras are being modified to newer surveillance systems utilizing IP cameras. These cameras offer remote surveillance and monitoring regardless of the device being used at any time, from any location. However, this approach needs live-streaming protocols to be implemented in order to verify real-time video streams and surveillance is possible after installation of separate plug-ins or special software. Recently, live streaming is being conducted through HTML5 using two different standard protocols: HLS and DASH, that works with Apple and Android products respectively. This paper proposes a live-streaming approach that is linked on either of the two protocols which makes the system independent with the browser or OS. The client is possible to monitor real-time video streams without the need of any additional plug-ins. Moreover, by implementing open source libraries, development costs and time were economized. We verified usefulness of the proposed approach through mobile devices and extendability to other various applications of the system.

The Study on the implementation of Portable Http Live Streaming Transmitter based the Embedded Linux (임베디드 리눅스 기반의 휴대용 Http 라이브 스트리밍 전송기 구현에 관한 연구)

  • Lee, Jea-Hee;Cho, Tae-Kyung
    • Journal of Digital Convergence
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    • v.13 no.11
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    • pp.141-148
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    • 2015
  • In this paper, for developing and implementing the HLS(Http Live Streaming) transmitter based embedded linux which is operated easily and cheap and lower power, portable in all networks and client environments compared to exist video live streaming transmitters. We design the developed HLS transmitter hardware using the Arm11 core and then porting the Embedded Linux OS(Operating System) and implementing the HLS protocol using the open source FFmpeg and Segmenter. For proving the performance of developed HLS transmitter, we make the testing environment for testing the performance of HLS transmitter including the notebook, iPhone, android Phone, Notebook and then analysis the received video in the client displayer. In this paper, we suggest the developed HLS transmitter performance data values higher than the Apple company's HLS recommended specification values and the picture of developed HLS transmitter operation in the testing environment. The application field of this paper result is that the man who works in the emergency situation take HLS and transmit the live emergency situation to the head quarter using this portable HLS.