外に出れないこんなご時世だからこそ、AWS MediaServices によるライブ配信入門

AWS MediaServices を使用してライブ配信基盤を構築する際の一般的なアーキテクチャをライブ配信に必要な要素をなぞりつつご説明します。

Transcript

1. "84
   .FEJB4FSWJDFT ʮ֎ʹग़Εͳ͍͜Μͳ࣌͝ੈ͔ͩΒͦ͜ʯ ʹΑΔ ϥΠϒ഑৴ೖ໳
2. ֎ʹग़Εͳ͍͜Μͳ࣌͝ੈ͔ͩΒͦ͜ɺ "84
   .FEJB4FSWJDFT
   ʹΑΔϥΠϒ഑৴ೖ໳ ೥݄೔ "84ࣄۀຊ෦ ίϯαϧςΟϯά෦ େલྒ༞
3. 3 ࣗݾ঺հ େલ ྒ༞ʢPPNBF
   SZPVTVLFʣ • ೥ ݄ೖࣾ • "84ࣄۀຊ෦ ίϯαϧςΟϯά෦ ॴଐ • 
   "1/
   "84
   5PQ
   &OHJOFFST • ޷͖ͳαʔϏε • "84
   .FEJB4FSWJDFT
4. 4 ૣ଎Ͱ͕͢ɾɾɾ "84
   ͰϥΠϒ഑৴͍ͨ͠Μ͚ͩͲ .FEJB4FSWJDFT
   ͍ͬͯ͏ͷ͕͋ΔΒ͍͠͡ΌΜ :PVUVCF-JWF
   ͱ͔΋͋ΔΑͶʁ ͦΕ͡ΌμϝͳΜ͚ͩͬʁ
5. 5 ૣ଎Ͱ͕͢ɾɾɾ ճ౴͕ύοͱ಄ʹු͔ͼ·͔͢ʁ
6. 6 ຊηογϣϯͷ໨త • "84
   .FEJB4FSWJDFT
   ͷ໾ׂΛཧղͰ͖Δ • "84
   ͰϥΠϒ഑৴Λߦ͏ߏ੒͕ΠϝʔδͰ͖Δ • ʮͳͥ "84
   Ͱߏங͢Δͷ͔ʁʯʹ౴͑ΒΕΔ
7. 7 ຊηογϣϯͰ࿩͞ͳ͍ࣄ • αʔϏε΍഑৴ٕज़ʹؔ͢Δࡉ͔͍આ໌ • 7P%ʢ7JEFP
   PO
   %FNBOEʣʹ͍ͭͯ
8. 8 ΞδΣϯμ  "84
   .FEJB4FSWJDFT
   ͷ֓ཁ  ࢲͨͪʹϥΠϒ഑৴͕ಧ͘·Ͱ  "84
   .FEJB4FSWJDFT
   ͷ໾ׂ  ͳͥ "84
   Ͱಈը഑৴Λ͢Δͷ͔  ·ͱΊ
9. 9 
   "84
   .FEJB4FSWJDFT
   ͷ֓ཁ "84
   .FEJB4FSWJDFT
   ͱ͸
10. 10 "84
    .FEJB4FSWJDFT
    ͱ͸ • "84
    ্ͰϥΠϒ഑৴΍ 7P%
    ͳͲͷϏσΦϫʔΫϑ ϩʔΛߏங͢Δࡍʹ໾ཱͭαʔϏε܈Λࢦࣔ͢͠ • ೥ʹ "84
    ͕ങऩͨ͠ &MFNFOUBM
    ࣾͷө૾ι Ϧϡʔγϣϯʹؔ͢Δٕज़͕ϕʔεʹͳ͍ͬͯΔ 
    "84
    .FEJB4FSWJDFT
    ͷ֓ཁ https://aws.amazon.com/jp/about-aws/whats-new/2015/09/07/announcing-elemental- acquisition/
11. 11 
    "84
    .FEJB4FSWJDFT
    ͷ֓ཁ αʔϏεҰཡ
12. 12 
    "84
    .FEJB4FSWJDFT
    ͷ֓ཁ "84
    ϝσΟΞαʔϏε • &$
    ౳ͱಉ༷ʹίϯιʔϧ্͔Β࢖༻͢ΔαʔϏε • αʔό؅ཧෆཁͷϚωʔδυαʔϏε "84
    &MFNFOUBM .FEJB$POOFDU "NB[PO
    ,JOFTJT
    7JEFP
    4USFBNT "84
    &MFNFOUBM .FEJB$POWFSU "84
    &MFNFOUBM .FEJB-JWF "84
    &MFNFOUBM .FEJB1BDLBHF "84
    &MFNFOUBM .FEJB4UPSF "84
    &MFNFOUBM .FEJB5BJMPS https://aws.amazon.com/jp/media-services/#AWS_Media_Services
13. 13 
    "84
    .FEJB4FSWJDFT
    ͷ֓ཁ "84
    &MFNFOUBM
    ΞϓϥΠΞϯεͱιϑτ΢ΣΞ • "84
    ͔Β෺ཧػࡐΛߪೖͯ͠࢖༻͢ΔαʔϏε "84
    &MFNFOUBM $POEVDUPS "84
    &MFNFOUBM %FMUB "84
    &MFNFOUBM -JWF "84
    &MFNFOUBM 4FSWFS "84
    &MFNFOUBM -JOL https://aws.amazon.com/jp/media-services/#AWS_Elemental_Appliances_.26_Software
14. 14 શαʔϏε͸Χόʔ͖͠Εͳ͍ͷͰɾɾɾ 
    "84
    .FEJB4FSWJDFT
    ͷ֓ཁ "84
    &MFNFOUBM .FEJB$POOFDU "84
    &MFNFOUBM .FEJB-JWF "84
    &MFNFOUBM .FEJB1BDLBHF "84
    &MFNFOUBM .FEJB4UPSF "84
    &MFNFOUBM -JWF "84
    &MFNFOUBM -JOL ϥΠϒ഑৴Ͱओʹ࢖ ༻͞ΕΔαʔϏε ͪΐͬͱ͚ͩ঺հ "84
    &MFNFOUBM .FEJB5BJMPS
15. 15 
    ࢲͨͪʹϥΠϒ഑৴͕ಧ͘·Ͱ ϥΠϒ഑৴Λߦ͏ͨΊͷཁૉͱ͸ʁ
16. 16 ϥΠϒ഑৴ͷϫʔΫϩʔυΛඥղ͍ͯΈΑ͏ • ΠϯλʔωοτΛܦ༝ͨ͠഑৴Λର৅ʢ055ʣ • Ӵ੕์ૹ͸࢓૊Έ͕ҟͳΔ෦෼͕͋ΔͷͰର৅֎ 
    ࢲͨͪʹϥΠϒ഑৴͕ಧ͘·Ͱ
17. 17 
    ࡱӨ • ϥΠϒ഑৴ʹ͓͚Δେݩͷཁૉ • Χϝϥ΍ϚΠΫΛ௨ͯ͡ө૾΍Ի੠ΛσʔλԽ͢Δ 
    ࢲͨͪʹϥΠϒ഑৴͕ಧ͘·Ͱ
18. 18 
    Τϯίʔυ • ࡱӨ͞ΕͨσʔλαΠζ͸Πϯλʔωοτܦ༝ͰϢʔβʹ ಧ͚Δʹ͸େ͖͗͢Δ • ඼࣭ΛอͪͭͭɺՄೳͳݶΓϑΝΠϧαΠζΛ࡟ݮ 
    ࢲͨͪʹϥΠϒ഑৴͕ಧ͘·Ͱ
19. 19 
    ύοέʔδϯά • ಈըΛ࠶ੜ͢Δ؀ڥ͸༷ʑ 1$
    "OESPJE
    J04
     • ࠶ੜ؀ڥʹԠͨ͡ܗࣜʹσʔλΛม׵͢Δඞཁ͕͋Δ 
    ࢲͨͪʹϥΠϒ഑৴͕ಧ͘·Ͱ
20. 20 
    ΦϦδϯ΁ͷอ؅ • Τϯίʔυ΍ύοέʔδϯά͕׬ྃͨ͠ϑΝΠϧΛอ؅ • Ϣʔβ͸ΦϦδϯ͔ΒσʔλΛऔಘ͢Δ 
    ࢲͨͪʹϥΠϒ഑৴͕ಧ͘·Ͱ
21. 21 
    ഑৴ʢ$%/
    ͷ࢖༻ʣ • ΦϦδϯʹΞΫηε͕ूத͢Δ͜ͱΛආ͚ΔͨΊɺ$%/ ʢ$POUFOU
    %FMJWFSZ
    /FUXPSLʣΛ࢖༻ 
    ࢲͨͪʹϥΠϒ഑৴͕ಧ͘·Ͱ
22. 22 
    ಈըϓϨΠϠʔ • σόΠεଆͰಈըϑΝΠϧΛਓ͕ࢹௌग़དྷΔܗͰදࣔ͢Δ • σόΠεʹΑͬͯ͸ͦͷ··࠶ੜͰ͖Δ৔߹΋͋Δ͕ɺҰ ൠతʹ͸ +BWB4DSJQU
    ౳Ͱͷ࣮૷͕ඞཁ 
    ࢲͨͪʹϥΠϒ഑৴͕ಧ͘·Ͱ
23. 23 શମਤʢ͋͘·ͰҰྫͰ͢ʣ 
    ࢲͨͪʹϥΠϒ഑৴͕ಧ͘·Ͱ
24. 24 
    "84
    .FEJB4FSWJDFT
    ͷ໾ׂ ͡Ό͋ɺ .FEJB4FSWJDFT
    ͸ԿΛͯ͘͠ΕΔͷʁ
25. 25 • Τϯίʔυ ʙ ഑৴·ͰΛ "84
    Ͱ͸ΧόʔՄೳ • ࡱӨɺಈըϓϨΠϠʔʹ͍ͭͯ͸ࣗલͰ༻ҙ͕ඞཁ "84
    .FEJB4FSWJDFT
    ͕Χόʔ͢Δൣғ
26. 26 
    "84
    .FEJB4FSWJDFT
    ͷ໾ׂ ΦϯϓϨ͔Β "84
    ΁ͷσʔλసૹ
27. 27 ࡱӨ͞ΕͨσʔλΛ "84
    ʹ࣋ͬͯ͘Δඞཁ͕͋Δ ΦϯϓϨ͔Β "84
    ΁ͷσʔλసૹ
28. 28 Πϯλʔωοτܦ༝ PS
    ดҬ໢ܦ༝ • "84
    %JSFDU
    $POOFDU
    Λ࢖༻ͨ͠ดҬ໢సૹ ΦϯϓϨ͔Β "84
    ΁ͷσʔλసૹ https://aws.amazon.com/jp/directconnect/
29. 29 ΦϯϓϨϛεଆͰͷΤϯίʔυ༗ແ • "84
    ʹૹΔલʹΤϯίʔυ͕ඞཁͳ৔߹͕͋Δ • ෺ཧ੡඼ͱͯ͠ &MFNFOUBM
    -JWF ͱ͍͏αʔϏε͕ଘࡏ ΦϯϓϨ͔Β "84
    ΁ͷσʔλసૹ
30. 30 "84
    &MFNFOUBM
    -JOL ͷ࢖༻ • "84
    &MFNFOUBM
    .FEJB-JWF ʹσʔλసૹ͕Մೳ • &MFNFOUBM
    -JOL
    ಺ͰಈըΛѹॖ͠ "84
    ʹసૹ ΦϯϓϨ͔Β "84
    ΁ͷσʔλసૹ
31. 31 
    "84
    .FEJB4FSWJDFT
    ͷ໾ׂ "84
    ؒͷσʔλసૹ
32. 32 "84
    ؒͷσʔλసૹ͕ඞཁͳέʔε • ւ֎ʢผϦʔδϣϯʣͰࡱӨ͞Εͨө૾Λ೔ຊʹૹΓ͍ͨ • ૹΒΕͨө૾Λෳ਺ͷαʔϏε΍ΞΧ΢ϯτʹ෼഑͍ͨ͠ "84
    ؒͷσʔλసૹ
33. 33 "84
    &MFNFOUBM
    .FEJB$POOFDU • ߴ඼࣭ͳϥΠϒಈը఻ૹαʔϏε • ৴པੑͷߴ͍ಈը఻ૹΛ࣮ݱ • ดҬ໢΍Ӵ੕௨৴ʹൺ΂ͯ҆Ձ • ϚωʔδυαʔϏε "84
    ؒͷσʔλసૹ https://aws.amazon.com/jp/mediaconnect/
34. 34 ϦʔδϣϯΛލ͍ͩసૹ "84
    ؒͷσʔλసૹ ෳ਺αʔϏε౳΁ͷ෼഑
35. 35 
    "84
    .FEJB4FSWJDFT
    ͷ໾ׂ "84
    ্ͰͷΤϯίʔυ
36. 36 "84
    &MFNFOUBM
    .FEJB-JWF • ϥΠϒಈը޲͚ΤϯίʔσΟϯάαʔϏε • ์ૹ඼࣭ϨϕϧΛ࣮ݱ͢Δ༷ʑͳػೳ • ߴ͍Մ༻ੑΛ࣋ͭϚωʔδυαʔϏε • γϯϓϧͳཁ݅Ͱ͋Ε͹ύοέʔδϯά·Ͱ࣮ࢪՄೳ "84
    ্ͰͷΤϯίʔυ https://aws.amazon.com/jp/medialive/
37. 37 ߏ੒ "84
    ্ͰͷΤϯίʔυ
38. 38 
    "84
    .FEJB4FSWJDFT
    ͷ໾ׂ "84
    ্Ͱͷύοέʔδϯά
39. 39 "84
    ্Ͱͷύοέʔδϯά "84
    &MFNFOUBM
    .FEJB1BDLBHF • ಈըͷύοέʔδϯάαʔϏε • %3.ʢσδλϧஶ࡞ݖ؅ཧʣ ΍޿ࠂૠೖ౳ͳ Ͳɺߴ౓ͳಈըػೳΛ࣮ݱ • ΦϦδϯͷ໾ׂ΋಺แ https://aws.amazon.com/jp/mediapackage/
40. 40 "84
    ্Ͱͷύοέʔδϯά ߏ੒
41. 41 
    "84
    .FEJB4FSWJDFT
    ͷ໾ׂ "84
    ্ͰͷΦϦδϯ
42. 42 "84
    ্ͰͷΦϦδϯ "84
    &MFNFOUBM
    .FEJB4UPSF • ϥΠϒ഑৴σʔλΛอଘɺ഑৴ • 4
    ͷηΩϡϦςΟͱ଱ٱੑΛ׆༻ • ϥΠϒ഑৴ʹಛԽͨ͠ύϑΥʔϚϯε https://aws.amazon.com/jp/mediastore/
43. 43 "84
    ্ͰͷΦϦδϯ "NB[PO
    4
    ͱͷ࢖͍෼͚ • ϥΠϒ഑৴ ʜ
    .FEJB4UPSF • ͦͷଞʢ7P%ͳͲʣʜ
    4 4
    ͷಛੑͰ͋Δ ݁Ռ੔߹ੑ ͕ϙΠϯτ https://dev.classmethod.jp/articles/ aws-elemental-mediastore- mediastore-immediate-consistency/
44. 44 "84
    ্ͰͷΦϦδϯ ߏ੒
45. 45 
    "84
    .FEJB4FSWJDFT
    ͷ໾ׂ .FEJB1BDLBHF
    ͱ .FEJB4UPSF
    ͷ࢖͍෼͚
46. 46 .FEJB-JWF
    
    .FEJB4UPSF • γϯϓϧͳϥΠϒ഑৴ʹ࠷ద • ഑৴ର৅ͷσόΠεछผ͕গͳ͍ • ߴ౓ͳಈըػೳ͕ෆཁ .FEJB1BDLBHF
    ͱ .FEJB4UPSF
    ͷ࢖͍෼͚ .FEJB-JWF ʜ
    Τϯίʔυͱύοέʔδϯά .FEJB4UPSF ʜ
    ΦϦδϯ
47. 47 .FEJB-JWF
    
    .FEJB1BDLBHF • ഑৴ର৅ͷσόΠεछผ͕ଟ͍ • %3.ʢσδλϧஶ࡞ݖ؅ཧʣ ΍޿ࠂૠೖ౳͕ඞཁ • ߴ౓ͳಈըػೳΛ࢖༻͍ͨ͠ .FEJB1BDLBHF
    ͱ .FEJB4UPSF
    ͷ࢖͍෼͚ .FEJB-JWF ʜ
    Τϯίʔυ .FEJB1BDLBHF ʜ
    ύοέʔδϯάͱΦϦδϯ
48. 48 ·ͣ͸ ʼ .FEJB-JWF
    
    .FEJB4UPSF ߏ੒Λݕ౼ ࣮ݱͰ͖ͳ͍ཁ͕݅͋Δ৔߹ 
    .FEJB-JWF
    
    .FEJB1BDLBHF Λ࠾༻ .FEJB1BDLBHF
    ͱ .FEJB4UPSF
    ͷ࢖͍෼͚
49. 49 
    "84
    .FEJB4FSWJDFT
    ͷ໾ׂ "84
    ͔Βͷ഑৴
50. 50 "84
    ͔Βͷ഑৴ "NB[PO
    $MPVE'SPOU • "84
    ͕ఏڙ͢Δ $%/ • ΦϦδϯͷෛՙΛܰݮ • ϥΠϒίϯςϯπʹରͯ͠΋༗ޮ https://aws.amazon.com/jp/cloudfront/ https://pages.awscloud.com/rs/112-TZM-766/images/KN-153-InterBEE2019_AWS- CDN%E3%80%90%E9%85%8D%E5%B8%83%E8%B3%87%E6%96%99%E7%89%88%E3%80%91.pdf
51. 51 "84
    ͔Βͷ഑৴ ߏ੒
52. 52 
    "84
    .FEJB4FSWJDFT
    ͷ໾ׂ ϥΠϒಈըͷ࠶ੜ؀ڥ
53. 53 • "84
    ʹ͸ಈըϓϨΠϠʔΛ࣮ݱ͢ΔαʔϏε͸ແ͍ҝ • ࣗલͰ࣮૷Λߦ͍ɺΞϓϦέʔγϣϯ౳ʹ૊ΈࠐΉ • खஈ • 7JEFPKT
    ͷΑ͏ͳϑϨʔϜϫʔΫΛ࢖༻ • 5)&0QMBZFS
    ͱ͍ͬͨϓϨΠϠʔ੡඼ͷ࠾༻ ϥΠϒಈըͷ࠶ੜ؀ڥ https://videojs.com/ https://www.theoplayer.com/
54. 54 ಈըϓϨΠϠʔʹؔ͢Δฐࣾϒϩά ϥΠϒಈըͷ࠶ੜ؀ڥ https://dev.classmethod.jp/articles/videojs-http-streaming-vhs-hls-streaming-minimum- setting/ https://dev.classmethod.jp/articles/introduce-theoplayer/
55. 55 
    "84
    .FEJB4FSWJDFT
    ͷ໾ׂ ʢࢀߟʣ޿ࠂૠೖ
56. 56 ʢࢀߟʣ޿ࠂૠೖ "84
    &MFNFOUBM
    .FEJB5BJMPS • ಈըʹ޿ࠂΛૠೖ͢ΔαʔϏε • αʔόʔαΠυ޿ࠂૠೖܕ • ޿ࠂ৘ใΛฦ٫͢Δ "%ʢΞυʣαʔόʔ͕ผ్ඞཁ https://aws.amazon.com/jp/mediatailor/
57. 57 ʢࢀߟʣ޿ࠂૠೖ ߏ੒
58. 58 
    "84
    .FEJB4FSWJDFT
    ͷ໾ׂ શମ૾
59. 59 શମ૾
60. 60 
    ͳͥ "84
    Ͱಈը഑৴Λ͢Δͷ͔ ͦΕɺ"84
    Ͱ഑৴͢Δඞཁ͸͋Γ·͔͢ʁ
61. 61 ಈը഑৴ʹؔ͢ΔϓϥοτϑΥʔϜ΍ύοέʔδ੡඼ ͸ੈͷதʹ਺ଟ͘ଘࡏ • "84
    Ͱߏங͢Δඞཁ͕ແ͍έʔε΋ • ʮ"84
    Ͱߏங͢Δཧ༝ʯΛ͖ͪΜͱෲམͪͤ͞Δ ͦΕɺ"84
    Ͱ഑৴͢Δඞཁ͸͋Γ·͔͢ʁ ˞ຊηογϣϯͰऔΓ্͛ΔϙΠϯτ͸͋͘·ͰҰྫͰ͢ɻ ͋͘·ͰࢀߟʹཹΊͯ௖͚·͢ͱ޾͍Ͱ͢ɻ
62. 62 
    ϙϦγʔɺίϯϓϥΠΞϯε • ձࣾͷϧʔϧతʹϓϥοτϑΥʔϜ౳ͷ࢖༻͕ /( • ʮಈը഑৴αΠτͷຒΊࠐΈײΛग़ͨ͘͠ͳ͍ʯ • ଞࣾϓϥοτϑΥʔϜ্ʹίϯςϯπΛอ؅Ͱ͖ͳ͍ • FUD ൑அج४ͱͳΔओͳϙΠϯτ
63. 63 
    ϥϯχϯάίετ • ഑৴ϓϥοτϑΥʔϜ͸ߴػೳ͕ͩߴՁͳࣄ΋ • Ұ࣌తͳ഑৴΍খن໛ͳ഑৴ͩͱݟ߹Θͳ͍έʔε΋ ൑அج४ͱͳΔओͳϙΠϯτ
64. 64 
    ϓϥοτϑΥʔϜ࢖༻࣌ͷऩӹϞσϧ • ࠶ੜ਺ʹԠͨ͡޿ࠂ΍౤͛મ͕ϝΠϯ • ഑৴ର৅ͷίϯςϯπྗ͕ٻΊΒΕΔ • རӹ͕ग़ͯ΋ҰఆͷϚʔδϯΛऔΒΕͯ͠·͏ ൑அج४ͱͳΔओͳϙΠϯτ
65. 65 
    ͳͥ "84
    Ͱಈը഑৴Λ͢Δͷ͔ "84
    Ͱͷ഑৴͕ϑΟοτ͢Δέʔε
66. 66 • Ұ࣌తͳεϙοτ഑৴΍খن໛഑৴ • "84
    ͷैྔ՝ۚϞσϧ͕ϑΟοτ • ඞཁ࠷খݶͷίετͰ࢝ΊΒΕΔ • ऩӹϞσϧΛࣗ෼ͨͪͰ༻ҙ͍ͨ͠ • طଘͷऩӹϞσϧʹनΘΕͳ͍ϏδωεΛݕ౼Մೳ • ଞͷ "84
    αʔϏεͱ࿈ܞͨ͠৽͍͠Ձ஋Λ૑଄ • ಈը഑৴ͱػցֶशαʔϏεͱͷ૊Έ߹ΘͤͳͲ "84
    Ͱͷ഑৴͕ϑΟοτ͢Δέʔε
67. 67 
    ͳͥ "84
    Ͱಈը഑৴Λ͢Δͷ͔ "84
    Ͱ഑৴͢Δʁ͠ͳ͍ʁ ·ͱΊ
68. 68 "84 Ͱ഑৴͢Δʁ͠ͳ͍ʁ·ͱΊ • "84 Ͱ഑৴͕ϑΟοτ͢Δέʔε • εϙοτ഑৴ͳͲɺैྔ՝ۚੑ͕ϑΟοτ͢Δ৔߹ • ΧελϚΠζੑ͕ٻΊΒΕΔ৔߹ • "84
    αʔϏεΛϑϧ׆༻͍ͨ͠ • ϓϥοτϑΥʔϜ౳ͷ࢖༻͕ਪ঑͞ΕΔέʔε • ऩӹ͸ؔ܎ͳ͘഑৴͑͞Ͱ͖Ε͹ྑ͍ • ϓϥοτϑΥʔϜ౳Λ࢖༻্ͨ͠Ͱ΋རӹ͕ݟࠐΊΔ
69. 69 
    ·ͱΊ ͋ͷ࣭໰Λࢥ͍ग़͠·͠ΐ͏
70. 70 ͋ͷ࣭໰ "84
    ͰϥΠϒ഑৴͍ͨ͠Μ͚ͩͲ .FEJB4FSWJDFT
    ͍ͬͯ͏ͷ͕͋ΔΒ͍͠͡ΌΜ :PVUVCF-JWF
    ͱ͔΋͋ΔΑͶʁ ͦΕ͡ΌμϝͳΜ͚ͩͬʁ
71. 71 গ͠Ͱ΋ճ౴͕ΠϝʔδͰ͖Δ༷ʹͳΓ·͔ͨ͠ʁ 
    ·ͱΊ
72. 72 ࠓ೔࿩ͨ͠ࣄ • "84
    .FEJB4FSWJDFT
    ͱ͸ • ϥΠϒ഑৴ϫʔΫϩʔυͷཁૉ • "84
    .FEJB4FSWJDFT
    ͷ໾ׂ • "84
    Ͱಈը഑৴Λ͢Δ৔߹ɺ͠ͳ͍৔߹ 
    ·ͱΊ