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影音資料傳輸原理

影音資料傳輸原理. ─ 輕鬆完成影音聊天室 呂孟庭. Outline. Codec Protocol Tool Don’t Re-invent the wheel! Engineer & Scientist. Codec. MpegX H.26X RealVideo 9 Windows Media 9 Others……. MpegX & H.26X. MpegX & H.26X. Real Media 9. Real Network Helix Producer SDK

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影音資料傳輸原理

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  1. 影音資料傳輸原理 ─ 輕鬆完成影音聊天室 呂孟庭

  2. Outline • Codec • Protocol • Tool • Don’t Re-invent the wheel! • Engineer & Scientist

  3. Codec • MpegX • H.26X • RealVideo 9 • Windows Media 9 • Others……

  4. MpegX & H.26X

  5. MpegX & H.26X

  6. Real Media 9 • Real Network • Helix Producer SDK • Same quality at half the bit rate of MPEG-4 • Same quality at quarter the bit rate of MPEG-2

  7. Windows Media 9 • Microsoft • Windows Media 9 Series SDK

  8. Protocol • RTP • RTCP • RTSP • H.323

  9. RTP

  10. RTCP Sender RTCP Packets sent Packets loss Interarrival jitter Internet RTCP RTCP Receiver Receiver

  11. RTSP

  12. H.323

  13. What do you want get from this Exp? • 我想要混學分 • 我想用現成的tool寫程式 • 我想自己寫Protocol的部分 • 我想自己寫Codec的部分 • 我想自己寫Protocol和Codec • 我不需要任何工具，我喜歡從頭開始硬幹

  14. 我想要混學分 • Windows Media 9 Encoder + Windows Media 9 Player + C# • Windows Media 9 Encoder + Windows Media 9 Player + C++ • 10 hours

  15. 我想用現成的tool寫程式 • NetMeeting3 SDK • AVPhone Sample

  16. 我想自己寫Protocol的部分 • Windows Format SDK 9 • Windows Codec Interface • Microsoft AVICap Sample • Windows Socket API • 不建議使用MFC的CSocket

  17. 我想自己寫Codec的部分 • CodeProject • CodeGuru • RTP tool(Henning Schulzrinne) • http://www.cs.columbia.edu/IRT/software/rtptools/

  18. 我想自己寫Protocol和Codec • CodeProject • CodeGuru • Winsock

  19. 我喜歡從頭開始硬幹 • MSDN • Windows Multimedia • Audio Compression Manager • Video Compression Manager • Direct X sdk

  20. 我對Multimedia Network很有興趣 • b88901124@ntu.edu.tw • 0968315097、0919999808 • Multimedia Processing And Communication Lab(慶齡Rm418)

  21. Other problems • Anry • Oops • Donnie • Kuanting • Giganano

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