Fragmented MP4のおはなし

Streaming Conference #2で発表したスライドです。
https://streaming-lab.connpass.com/event/79586/

Transcript

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   .1ͷ͓͸ͳ͠ 4USFBNJOH
   $POGFSFODF
   
   1SFTFOUFE
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2. ࣗݾ঺հ w ϝςΦ !NFUFPS@TBBO
   w ෱ԬʹॅΜͰ͍Δେֶ೥ੜ
   w ઐ໳͸ࣗવݴޠॲཧ
   w ࠷ۙͷझຯ͸6%1ͷύέοτଛࣦ࣌ͷϦΧόʔʹؔ͢Δݚڀ
   w ๭ࣾͰϥΠϒ഑৴ج൫ͷߏஙʹؔΘ͍ͬͯͨ
3. -JWF
   4USFBNJOH
   'PSNBU
4. -JWF
   4USFBNJOH
   'PSNBU w 35.1
   w 435
   w )551
   -JWF
   4USFBNJOH
   w .1&(%"4)
   w 8FC35$
5. -JWF
   4USFBNJOH
   'PSNBU w 35.1
   w 435
   w )551
   -JWF
   4USFBNJOH
   w .1&(%"4)
   w 8FC35$
6. )551
   -JWF
   4USFBNJOH w "QQMF͕։ൃɻ
   w 3'$ͱͯ͠ඪ४Խɻ
   w NVϓϨΠϦετΛ࢖ͬͯ഑৴ɻ
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   1MBZMJTU .FEJB
   1MBZMJTU 4FHNFOU
    4FHNFOU
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   1MBZMJTU 4FHNFOU
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   1MBZMJTU MJTUNV QNV UT UT QNV UT UT QNV
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    .BOJGFTU MJTUNQE JOJUNT NT NT MJTUNQE NT NT MJTUNQE
8. IMTKT͕ͻͨ͢Βॏ͍໰୊
9. IMTKT w )-4͸جຊతʹ4BGBSJͳͲɺݶΒΕͨϒϥ΢βͰ͔͠࠶ੜग़དྷͳ͍ɻ
   w ͦͷͨΊɺඇରԠϒϥ΢βΛαϙʔτ͢ΔͨΊʹ͸IMTKTͱݺ͹ΕΔ +BWB4DSJQUͷϥΠϒϥϦΛ࢖͏ඞཁ͕͋Δɻ
   w ΄͔ʹ΋WJEFPKTDPOUSJCIMTͳͲ΋͋Δ͕ɺݱࡏओྲྀͳͷ͸IMTKTɻ
10. UTEFNVYFSKT w NVΛऔಘ
    w 54ϑΝΠϧΛऔಘ
    w 54ϑΝΠϧ͔Βө૾ͱԻ੠ΛऔΓग़͢
    w औΓग़ͨ͠σʔλΛ*40#.''ʹม׵͢Δ
    w .FEJB4PVSDF&YUFOTJPOΛ࢖ͬͯ࠶ੜ͢Δ
11. UTEFNVYFSKT w NVΛऔಘ
    w 54ϑΝΠϧΛऔಘ
    w 54ϑΝΠϧ͔Βө૾ͱԻ੠ΛऔΓग़͢
    w औΓग़ͨ͠σʔλΛ*40#.''ʹม׵͢Δ
    w .FEJB4PVSDF&YUFOTJPOΛ࢖ͬͯ࠶ੜ͢Δ
12. UTEFNVYFSKT .1&(54 1"5 1.5 7JEFP
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13. UTEFNVYFSKT .1&(54 1"5 1.5 7JEFP
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     ŋŋŋ ϓϩάϥϜΛऔಘ
14. UTEFNVYFSKT .1&(54 1"5 1.5 7JEFP
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     ŋŋŋ ө૾΍Ի੠ͷ1*%Λऔಘ
15. UTEFNVYFSKT .1&(54 1"5 1.5 7JEFP
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17. UTEFNVYFSKT .1&(54 1"5 1.5 7JEFP
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     ŋŋŋ Ի੠Λநग़
18. UTEFNVYFSKT .1&(54 1"5 1.5 7JEFP
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     ŋŋŋ ϔομʔ৘ใΛऔಘ
19. UTEFNVYFSKT .1 *40
    #.'' 7JEFP
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     GUZQ NPPW NWIE USBL NEBU 7JEFP
    %BUB 3FNVYJOH
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20. UTEFNVYFSKT
21. 'SBHNFOUFE
    .1
22. 'SBHNFOUFE
    .1 w *40ʹنఆ
    w #PYͱ͍͏୯ҐͰ֤छͷ৘ใ͕෼͔Εͯ֨ೲ͞Ε͍ͯΔ
    w ݱࡏ)-4ͱ.1&(%"4)ͷ྆ํͰαϙʔτ͞Ε͍ͯΔ
23. 'SBHNFOUFE
    .1 w GUZQ
    GJMF
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    w NPPW
    IFBEFS
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    w NEBU
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    EBUB GUZQ NPPW NWIE USBL NEBU 7JEFP
    %BUB ௨ৗͷ.1 ϑΝΠϧ
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24. 'SBHNFOUFE
    .1 w GUZQ
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    w TJEY
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    NPPG
    
    NEBU
    w NPPG
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    w NEBU
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    EBUB GUZQ NPPW NWIE USBL NEBU NPPG NGIE USBG 7JEFP
    %BUB 'SBHNFOUFE
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    NT
25. 'SBHNFOUFE
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    w .1&(54ͷͱ͖ͱϑΥʔϚοτ͸ ͋·ΓมΘΒͳ͍ #EXTM3U #EXT-X-VERSION:4 #EXT-X-TARGETDURATION:10 #EXT-X-MEDIA-SEQUENCE:0 #EXT-X-MAP:URI=“init.mp4" #EXTINF 10.001 segment1.mp4 #EXTINF 10.001 segment2.mp4
26. 'SBHNFOUFE
    .1 w .1&(%"4)ͷ৔߹͸ݩʑαϙʔτ ͞Ε͍ͯΔ
    w *OJUJBMJ[BUJPO
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27. 'SBHNFOUFE
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28. .FEJB
    4PVSDF
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    w ॳظԽʹඞཁͳϔομ৘ใؚ͕·Ε͍ͯΔॳظԽηάϝϯτͱ୹͍࣌ؒͰ ۠੾ΒΕͨϝσΟΞσʔλຊମؚ͕·ΕΔϝσΟΞηάϝϯτ͕ඞཁ
    w ͭ·Γɺ'SBHNFOUFE
    .1͸શͯຬ͍ͨͯ͠ΔͨΊɺͦͷ··࠶ੜ͢Δ ͜ͱ͕ग़དྷΔ
29. .FEJB
    4PVSDF
    &YUFOTJPOT w +BWB4DSJQUͷϥΠϒϥϦEBTIKT΍IMTKTΛ࢖͏͜ͱʹΑΓɺࣗલͰ࣮૷ͤ ͣʹͦͷ··࠶ੜ͢Δ͜ͱ͕ग़དྷΔɻ 'SBHNFOUFE
    .1 GUZQ NPPW NWIE USBL NEBU NPPG NGIE USBG 7JEFP
    %BUB .FEJB
    4PVSDF
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30. $."'
31. $PNNPO
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    'PSNBU w *40*&$
    
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    w ϝσΟΞϑΥʔϚοτʹ*40
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    .1 Λ࢖͏͜ͱ͕ఆٛ ͞Ε͍ͯΔ
32. $PNNPO
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33. $PNNPO
    .FEJB
    "QQMJDBUJPO
    'PSNBU w $."'Ͱ͸)551ͷ$IVOLFE
    5SBOTGFS
    &ODPEJOHΛ࢖͏
    w ηάϝϯτϑΝΠϧΛߋʹ෼ׂͨ͠΋ͷΛνϟ ϯΫͱݺͿ
    w ηάϝϯτϑΝΠϧ͕Τϯίʔμ͔Βશͯૹ ৴͞ΕΔલʹɺνϟϯΫΛΫϥΠΞϯτଆͰ ࠶ੜ͢Δ NEBU NPPG NGIE USBG 7JEFP
    %BUB 'SBHNFOUFE
    .1 ηάϝϯτϑΝΠϧ
    NT νϟϯΫ
    NTͷҰ෦ NEBU NPPG NGIE USBG 7JEFP
    NEBU NPPG NGIE USBG 7JEFP
    NEBU NPPG NGIE USBG 7JEFP
    
34. $PNNPO
    .FEJB
    "QQMJDBUJPO
    'PSNBU w νϟϯΫͷେ͖͞͸ࣗ༝ͳͷͰɺΑΓ௿஗ԆΛ࣮ ݱ͍ͨ͠ͳΒখ͍͞αΠζͰ۠੾Δ͜ͱ΋Մೳ
    w νϟϯΫΛ࠶ੜ͢Δʹ͸ɺηάϝϯτͷμ΢ϯϩʔ υ͕׬ྃ͢Δલʹ$IVOLFE
    5SBOTGFSͰड͚औͬ ͨσʔλΛ࠶ੜόοϑΝʹඇಉظͰ௥Ճ͢Δඞཁ ͕͋Δ
    w ͦͷͨΊɺ࣮ࡍʹ࠶ੜग़དྷΔϓϨΠϠʔ͕গͳ͍ NEBU NPPG NGIE USBG 7JEFP
    %BUB 'SBHNFOUFE
    .1 ηάϝϯτϑΝΠϧ
    NT νϟϯΫ
    NTͷҰ෦ NEBU NPPG NGIE USBG 7JEFP
    NEBU NPPG NGIE USBG 7JEFP
    NEBU NPPG NGIE USBG 7JEFP
    
35. ͓·͚ IUUQTHJUIVCDPN%BTI*OEVTUSZ'PSVNEBTIKTQVMMΑΓ
36. ͓͠·͍