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Distributed Software Development

Distributed Software Development. Customers : Damir Isovic (MDH) and  Klas Eriksson (OneDial AB). Requirements Definition and Design Description Presentation : Live TV. What we’ll speak about ?. 1. The goal of the project 2. Requirements 3. Use case diagrams

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Distributed Software Development

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  1. Distributed Software Development

  2. Customers : Damir Isovic (MDH) and  Klas Eriksson (OneDial AB) RequirementsDefinition and Design Description Presentation : Live TV

  3. What we’ll speak about ? • 1. The goal of the project • 2. Requirements • 3. Use case diagrams • 4. Architecture and Technologies (Design)

  4. 1. The goal of the project 1/2 • Implement a system that can be used for live TV broadcasting using mobile phones

  5. 1. The goal of the project 2/2

  6. 2. Requirements • Recording application requirements : • OneDial provided the “recorder mobile” • Desirable to record with a variety of mobile • Possibility to choose the quality of recording • Have the possibility to receive client’s feedback (optional)

  7. 2. Requirements • Production studio application requirements : • Minimum 6 streams can be received simultaneously • Be able to select the stream • Add commercials in the stream • Run on Windows system

  8. 2. Requirements • Player application requirements : • Available on variety of mobile phone brands • Allows users to send feedback (optional) • Ability to check mobile device support (optional)

  9. 2. Requirements • Non-functional requirements: • Use existing network (3G, Wifi, …) • 5s delay maximum from the event to the client mobile • Quality of sound should not be compromised

  10. 2. Requirements

  11. 2. Requirements

  12. 3. Use case diagrams

  13. 3. Use case diagrams

  14. 3. Use case diagrams

  15. 4. Architecture • System Components

  16. 4. Architecture Mobile Recorder PC Studio Mobile Client Player PUSH PULL Stream Stream 3GP over RTP 3GP/MP4 over RTSP XML Web Services XML Web Services Feedback Feedback

  17. 4. Architecture Mobile Recorder Camera API Internal H.263 and AMR Encoders 3GP Encapsulation Encoded Video & Audio Streams RTP Streaming Feedback Notification UI

  18. 4. Architecture PC Studio LibVLC in C# receiving multiple streams over RTP Stream Selection & Ads Injection UI DSS serves stream over RTSP Output stream relayed to DSS Windows Web Server (hosts Web Services for Feedback)

  19. 4. Architecture Mobile Client Player RTSP De-Packetizer Internal H.263 and AMR Decoders Live stream playback Viewer Feedback UI (I Love it / I Hate it)

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