Internet Protocol TV - PowerPoint PPT Presentation

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Internet Protocol TV

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Stream real time Real Media file from a remote server on the ... resulting audio/video with Media Player (MPlayer) on a Linux ... Media, VLC, etc. ... – PowerPoint PPT presentation

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Title: Internet Protocol TV


1
Internet Protocol TV
  • Next Generation Set-Top Box
  • Proof-of-Concept
  • Hugo Kwok
  • David Shen
  • Jimmy Jeong
  • Allen Lai
  • Group 10

2
Agenda
  • Background
  • Objective
  • System Overview
  • Challenges
  • Future Developments
  • Conclusion
  • Demo
  • Questions?

3
Background
  • Currently, the TV market is dominated by cable
    and satellite providers
  • IPTV is a new technology where users are able to
    view TV contents over the internet.
  • IPTV is already available in certain cities
  • (e.g. TELUS, ATT)

4
Background (continued)
  • Two segments
  • Live broadcasts
  • Stored broadcasts or Video On Demand (VOD)
  • Users stream contents after they are downloaded
    (e.g. to a hard drive)
  • Can be easily integrated into the household
  • Internet connection

5
IPTV Graphical Representation
6
Objective
  • Standardized set top box compatible for multiple
    service providers
  • Display internet media streams on a standard
    television set with-out using a PC
  • Proof-of-concept to commercialization

7
Proof of Concept
  • Stream real time Real Media file from a remote
    server on the Internet via RTSP
  • Convert Real Media file through decode/encode
    algorithms into MPEG4 format
  • Play resulting audio/video with Media Player
    (MPlayer) on a Linux development platform via an
    attached LCD screen on the development board

8
Equipment
  • TI DaVinci System-on-Chip
  • Dual-core with ARM9 and C6000 DSP CPU
  • LCD screen output
  • Internet connection
  • Helix Server
  • Simulates online media streaming from a local
    directory

9
System Flow Diagram
10
Why MPEG4?
  • The set-top box shall stream various media format
    and convert it into MPEG4 video and MP2 audio
    format for storage and display due to the
    following reasons
  • Easy to manage
  • High compression ratio
  • Further software development focused on MPEG4
    format media file

11
Why MPlayer?
  • Physical media
  • CDs, DVDs, Video CDs
  • Container formats
  • 3gp, AVI, ASF, FLV, Matroska, MOV (QuickTime),
    MP4, NUT, Ogg, OGM, RealMedia
  • Video codecs
  • Cinepak, DV, H.263, H.264/MPEG-4 AVC, HuffYUV,
    Indeo, MJPEG, MPEG-1, MPEG-2, MPEG-4 Part
    2, RealVideo, Sorenson, Theora, WMV
  • Audio codecs
  • AAC, AC3, ALAC, AMR, FLAC, MP3, RealAudio,
    Shorten, Speex, Vorbis, WMA

12
MPlayer (continued)
  • Large selection of supported media formats
  • Open source software

13
MEncoder
  • Transcoder with MPlayer bundle
  • Converts wide range of multimedia files to a
    specific file format
  • Able to save a video and audio stream separately
    onto a memory location for post processing

14
MEncoder (continued)
  • In the proof of concept device, the real media
    video will be developed such that the
    set-top box can stream media content in RM
    format
  • Codec developed based on the source code of RV30
    from the Helix Community

15
Transcoding High Level
16
Transcoding Conversion Block
17
Problems Encountered
  • Setting up development platform and OS
  • Researching and understanding the technical
    backgrounds
  • Understanding source code
  • Obtaining Real Media Source Code
  • Not open source like other codecs (only binary
    files available)
  • Requires license from Helix Community
  • Not successful in compiling

18
Problems Encountered
  • Cross-compiling RealPlayer source code for the
    ARM
  • Attempted to understand header files of codecs
    suggested by Dr. Bajic
  • Tried different binary files of real video codecs
  • RealMedia codec in binary form for Palm, which
    ran on ARM processor
  • Extracted files were not compatible

19
Future Developments
  • Implement streaming of all other input media
    formats, convert and output to one universal
    format
  • e.g. Windows Media, VLC, etc. ? MPEG 4
  • Migrating system from ARM CPU to C6000 Digital
    Signal Processing CPU for more efficient
    processing and algorithmic calculations
  • Developing a GUI
  • Integrate proof of concept and commercialize it
    in set top box

20
Budget
21
Lessons Learned
  • Team Dynamics
  • Problem Solving
  • Project Planning
  • Time Management
  • Challenges in Integration

22
Acknowledgements
  • Dr. Farid Azhar for his support
  • Dr. Ivan Bajic for his advice
  • Dr. Lucky One for insights and providing us with
    lab access and equipment
  • Mr. Steve Whitmore for overseeing the project and
    advice guidance

23
Demonstration
24
Questions / Answers
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