The Design Of Virtual Class Android-Based Mobile Video Streaming Using The Real Time Streaming Protocol

Transcription

1 The Design Of Virtual Class Android-Based Mobile Video Streaming Using The Real Time Streaming Protocol 1) Heryanto Bernadus, 2) Marwan Prodi Magister Sistem Komputer,Pascasarjana STMIK Handayani makassar 1) herymks@gmail.com, 2) marwan.ocx@gmail.com Abstract. Virtual classroom technology (virtual class) that is part of the learning models simplify the process of teaching and learning that is constrained by time and distance. Android as the operating system that is widely used at this time, utilized to create mobile applications for virtual class by using the Real Time Streaming Protocol (RTSP) as the controller of the course (playback) media on a device which receives the flow of the streaming server. The development of technology in Indonesia an internet speed that have entered the next-generation 4 g, add to the quality of the video live streaming on mobile devices so that by utilizing wowza server then allows everyone access to learning anytime anywhere application only with the help of mobile devices. Keyword :virtual class, android, Real Time Streaming Protocol,wowsa server I. Introduction via the Android devices while using only a web browser on your Android device. A. Virtual Class II. Discussion virtual class is a form of application of information technology in education, is the conventional teaching and learning change into digital form.the learning process can be run in a virtual classroom is supported by the utilization of information technology as a means of support. The role of the teacher in the learning process that integrates information technology as a facilitator is expected (providers), collaborators, mentors, coaches, directors and friends learn and can give you a choice and a big responsibility to the students to experience the actual teaching and learning process. The process of teaching and learning in Indonesia continue to under go development. One form of the development of e-learning which is a form of learning through digital media. Virtual classroom technology (virtual class) that is part of the model of learning e-learning facilitates the process of teaching and learning that constrained distance (Tri, 2007). One form of virtual class that uses video streaming is still constrained the mobility problems so it's a little hard to use anywhere. Virtual device class that uses streaming videos are generally still take advantage of the large sized monitor Android as the operating system that is widely used nowadays in Indonesia has the ability to make every human needs to be informed. The open source nature of Android capable of internally developed more broadly to help teaching and learning in Indonesia. Virtual classroom (virtual class) in the form of file sharing class content is already accessible Figure 2.1: Illustrated Virtual Classroom 74

2 B. Real-time Transport Protocol (RTP) Real-time Transport Protocol (RTP) is a package format for transmitting audio and video media that has been encoded (encoding) and various jenispenyandi (encoder) via internet or local network. RTP is used widely in communications that involve streaming media, such as telephone, video teleconference applications, services and television services push-to-talk that is web based RTP is used in conjunction with RTP Control Protocolocol (RTCP). While RTP carries media streams (audio and viddeo, for example). RTCP is used to monitor transmission statistics and the quality of service (quality of services) and synchronization tool multiple streams (streams). Distribution of video files as well as audio that is on-demand and live performed by the media server using different protocols. This customized distribution protocol with the codec of video and audio that is produced and developed by the company and the developer community. In the outline of the two protocols that support streaming video that goes by: 1) Transport Protocol that provides connectivity for end-to-end network for streaming applications. Transport protocol is divided into User Datagram Protocol (UDP) and Transmission Control Protocol (TCP). 2) Session Control Protocol which defines the messages and procedures to regulate the delivery of data from the server during the media session was formed. That includes the session control protocol is the real-time Transport Protocol (RTP), Real Time Streaming Protocol (RTSP), and real-time Control Protocol (RTCP). Figure 2.2 : protocol used in Streaming C. Real Time Streaming Protocol (RTSP) Real Time Streaming Protocol (RTSP) is used to control the course of the stream in RTP. RTSP Server allows the user (client) to receive RTP packets are sent through a device. RTSP is a network control protocol designed for use in entertainment and communications systems to control streaming media servers. Client media server issue commands like Play and Pause to facilitate playback controls media files from the server in real time.specifically RTSP can be said to be a remote control network on a server that is streaming (streaming) media Figure 2.3 : an overview of RTSP D. Android Devices Android is an operating system for cell phones, especially smartphones and tablet-based Linux as the kernel. Android provides an open platform (open source) for developers to create their own applications. Simply put, Android is a combination of three components, namely: 1) The operating system is open source for mobile devices. 2) An open source platform for creating mobile applications. 3) Cellular phone Devices, especially those running the Android operating system and the application for it. 4) Android Software Stack (figure 2.4) simply put is a Linux kernel which leads to a framework application that provides services, management, run time, and the application 75

3 Figure 2.4 : Android Software Stack E. Wowza Streaming Engine To use RTSP streaming server is a required. One of the streaming server that can be used is Wowza Streaming Engine ( which is a server technology to address the needs of video and streaming audio from a device. In this study, the Wowza server used as a video that received from the Android device and provide streaming services will be used by other devices Figure 2.5 : the Wowza Streaming RTSP Engine 76

4 F. The Architecture Of Mobile Virtual Class Figure 2.6 : Architecture of mobile virtual class Create virtual classes that make use of Android devices as mobile video streaming using the Real Time Streaming Protocol (RTSP) is created by using a form of server-client by leveraging the Wowza Streaming Engine as a streaming server. The client in the form of Android devices that are connected to the internet, as seen in Figure 2.6 The difference with the virtual classroom to among others, by adding features new features such as: 1. The streaming video conversation will be visible in the display screen amounts to more than three or number of live video steaming while deployed 2. Recording streaming video data will be stored in the database so that it is possible the student or students can repeat again the discussion is already taught in the virtual classroom 3. Virtual class mobile application which is designed utilizing a variety of low-power mobile devices but it does reduce the quality of the video streaming In Figure 2.6, there is server unit (minimum intel corei7) with operating system windows 8.1 and the application has been equipped with installed Java Development Kit (JDK) 7 and Android and the 77

5 Eclipse will also be used as a database or data storage media video streaming Take advantage of the technology of Real Time Streaming Protocol (RTSP) streaming video on the virtual classroom via the Android devices, provides convenience to conduct teleconferences simultaneously without any barriers of distance and time III. Conclusion The design of this research is focused on the creation of a virtual class in the form of mobile video streaming using an Android device. Streaming video that will be used will be through the media server streaming a Wowza Streaming Engine by using the Real Time Streaming Protocol (RTSP). The design of this application is expected to help the students, college students, teachers, and professors in developing and utilizing the virtual virtual classroom teaching and learning so that it can continue to be carried out without the existence of barriers of distance and time The authors take advantage of the development of the Android-based Mobile device because the operating system is open source so it can be developed more easily, as well as the market share of android-based phone controlled 60% of mobile phones in Indonesia Reference [1] Bailey, Justin M Live Video Streaming from Android-Enabled Devices to Web Browsers. Department Computer Science and Engineering University of South Florida. [2] Tri, Darmayanti, dkk E-Learning pada Pendidikan Jarak Jauh : Konsep yang Mengubah Metode Pembelajaran di Perguruan Tinggi di Indonesia. Universitas Terbuka. [3] Ransburg, Michael, dkk An Evaluation of Mobile End Devices in Multimedia Streaming Scenarios. Multimedia 78

6 Communication (MMC) Research Group Klagenfurt University. Austria. [4] Schulzrinne, H, dkk Real Time Streaming Protocol (RTSP). Columbia University,Amerika Serikat. [5] Far,Zoe.2014.KelasMaya, maya.html [online] (Diakses pada tanggal 2 September 2014, Pukul WITA). [6] Franzlpster Sistem Protokol Jaringan pada Teknologi Streaming. jaringan-pada-teknologi-streaming.html [online] (Diakses pada tanggal 2 September 2014, Pukul WITA). [7] Zurawski, Richard The Industrial Communication Technology Handbook. Taylor & Francis Group. 79