2時間の動画データはどうやって再生するのか

Transcript

1. J04ΞϓϦ೔࡞͍ͬͯ·͢
   

   View Slide

2. ࣌ؒͷ҉߸ԽࡁΈσʔλ͸
   Ͳ͏΍ͬͯ࠶ੜ͢Δͷ͔
   ʙ͋ͳͨͷௐ͕ࠪ࣌ؒ೔͔ؒΒ෼ʹ
   

   View Slide

3. ࠓ೔࿩͢͜ͱ
   !
   ͲͷཁૉΛ༻͍࣮ͯݱ͔ͨ͠
   

   View Slide

4. ཁ݅͸ͭ
   !
   ࣌ؒ௒ͷಈըσʔλΛ࠶ੜ
   σʔλ҉߸Խඞਢ
   ΦϑϥΠϯ࠶ੜ
   

   View Slide

5. ՝୊
   !
   ࣌ؒͷಈըσʔλ͸ϝϞϦʹ৐
   Γ੾Βͳ͍
   ෮߸ԽͷλΠϛϯά͸ʁ
   

   View Slide

6. ࢼߦࡨޡ
   

   View Slide

7. ݁࿦
   

   View Slide

8. "71MBZFS)-4
   

   View Slide

9. )-4
   )UUQ-JWF4USFBNJOH
   
   

   View Slide

10. εςοϓಈըσʔλ෼ׂ
    !
    εςοϓ҉߸ԽΩʔϑΝΠϧ҉߸Խ
    !
    εςοϓJ1IPOF಺ʹ)UUQαʔόཱͯΔ
    !
    εςοϓ҉߸ԽΩʔ෮߸ॲཧ௥Ճ
    !
    εςοϓ࠶ੜʂ
    

    View Slide

11. 
    εςοϓಈըσʔλ෼ׂ
    !
    εςοϓ҉߸ԽΩʔϑΝΠϧ҉߸Խ
    !
    εςοϓJ1IPOF಺ʹ)UUQαʔόཱͯΔ
    !
    εςοϓ҉߸ԽΩʔ෮߸ॲཧ௥Ճ
    !
    εςοϓ࠶ੜʂ
    

    View Slide

12. ҉߸ԽΩʔϑΝΠϧɹͱɹNQ
    !
    ˣ
    !
    ҉߸Խ͞Εͨ54ϑΝΠϧ܈
    

    View Slide

13. 
    εςοϓಈըσʔλ෼ׂ
    !
    εςοϓ҉߸ԽΩʔϑΝΠϧ҉߸Խ
    !
    εςοϓJ1IPOF಺ʹ)UUQαʔόཱͯΔ
    !
    εςοϓ҉߸ԽΩʔ෮߸ॲཧ௥Ճ
    !
    εςοϓ࠶ੜʂ
    

    View Slide

14. ҉߸ԽΩʔϑΝΠϧ
    !
    ˣ
    !
    ҉߸Խͨ͠҉߸ԽΩʔϑΝΠϧ
    

    View Slide

15. 
    εςοϓಈըσʔλ෼ׂ
    !
    εςοϓ҉߸ԽΩʔϑΝΠϧ҉߸Խ
    !
    εςοϓJ1IPOF಺ʹ)UUQαʔόཱͯΔ
    !
    εςοϓ҉߸ԽΩʔ෮߸ॲཧ௥Ճ
    !
    εςοϓ࠶ੜʂ
    

    View Slide

16. DPDPB)UUQ4FSWFS
    

    View Slide

17. 
    εςοϓಈըσʔλ෼ׂ
    !
    εςοϓ҉߸ԽΩʔϑΝΠϧ҉߸Խ
    !
    εςοϓJ1IPOF಺ʹ)UUQαʔόཱͯΔ
    !
    εςοϓ҉߸ԽΩʔ෮߸ॲཧ௥Ճ
    !
    εςοϓ࠶ੜʂ
    

    View Slide

18. DPDPB)UUQ4FSWFSͷ৔߹
    !
    )551$POOFDUJPON
    !
    /40CKFDU)5513FTQPOTF
    IUUQ3FTQPOTF'PS.FUIPE /44USJOH
    NFUIPE63* /44USJOH
    QBUI
    \
    JG
    \
    ˙҉߸ԽΩʔϑΝΠϧͷϦΫΤετͷ৔߹
    
    ҉߸ԽΩʔϑΝΠϧͷ෮߸Խॲཧ
    
    SFUVSO<BMMPD>JOJU8JUI%BUBEFD%BUB>
    ^
    FMTF\
    ˙௨ৗॲཧ
    SFUVSO<BMMPD>JOJU8JUI'JMF1BUIpMF1BUIGPS$POOFDUJPOTFMG>
    ^
    ^
    !
    

    View Slide

19. 
    εςοϓಈըσʔλ෼ׂ
    !
    εςοϓ҉߸ԽΩʔϑΝΠϧ҉߸Խ
    !
    εςοϓJ1IPOF಺ʹ)UUQαʔόཱͯΔ
    !
    εςοϓ҉߸ԽΩʔ෮߸ॲཧ௥Ճ
    !
    εςοϓ࠶ੜʂ
    

    View Slide

20. "71MBZFS7JFX$POUSPMMFSΛܧঝͨ͠Ϋϥεʹͯ
    !
    WPJE
    WJFX%JE"QQFBS #00-
    BOJNBUFE
    \
    

    View Slide

21. %FNP
    

    View Slide

22. ·ͱΊ
    !
    ɾಠࣗϓϨʔϠʔ࡞Βͣͱ΋࣌ؒ௒ͷ҉߸ԽࡁΈ
    ɹಈըσʔλ͸࠶ੜՄ
    !
    ɾJ1IPOF಺෦ʹ)UUQαʔόΛཱͯ)-4Ͱ࠶ੜ
    

    View Slide

23. ࣗݾ঺հ
    ෰෦ஐ
    !
    ੩Ԭݝग़਎ɻ
    J04ΤϯδχΞɻגࣜձࣾΤΫεϥΠζͷ։ൃνʔϑɻ
    ɹΧϦϑΥϧχΞभཱେֶίϯϐϡʔλαΠΤϯεֶ෦ଔۀޙ
    ౎಺*5ϕϯνϟʔاۀʹब৬ɻ
    !
    ɹͦͷޙԻָͷಓΛࢤ͢΋࠳ંɻ
    ࠶ͼ*5ۀքʹ໭Γ։ൃʹूத͢Δ೔ʑɻ
    ɹ૬ஊɺ͓࢓ࣄ଴͍ͬͯ·͢ɻ
    

    View Slide

24. ɹ.1.PWJFX1MBZFS
    !
    ɹ"71MBZFS
    !
    ɹ8FC7JFXܥͷWJEFPλά
    !
    ɹ⒎NQFHܥϥΠϒϥϦ࢖༻
    !
    ɹࢴࣳډ
    

    View Slide