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AbemaTVのアーキテクチャの変遷 / The history of AbemaTV's architecture
Yusei Yamanaka
October 13, 2018
Programming
3
990
AbemaTVのアーキテクチャの変遷 / The history of AbemaTV's architecture
Yusei Yamanaka
October 13, 2018
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Transcript
"CFNB57ͷ ΞʔΩςΫνϟͷมભ :VTFJ:BNBOBLB 4FTTJPO"
ࣗݾհ
ࢁத༐BLBΈΏ͖ͬ ܚጯٛक़େֶڥใֶ෦ଔۀ େֶͰͷݚڀςʔϚඇѹॖ,*1ૹ גࣜձࣾαΠόʔΤʔδΣϯτೖࣾ גࣜձࣾ"CFNB57ίϯςϯπ৴νʔϜ 4USFBNJOH3FMJBCJMJUZ&OHJOFFS
ө૾ػࡐΦλΫ झຯ
աڈͷొஃ
ΞδΣϯμ
ຊ͢͜ͱ w "CFNB57ͷྺ࢙ w "CFNB57ͷΞʔΩςΫνϟͷมભ w ։ൃ։࢝ʙԾ։ہ w Ծ։ہʙຊ։ہ w
ຊ։ہʙप w पʙप w पʙݱࡏ
w ϝΠϯҎ֎ͷΞʔΩςΫνϟͷมભ w ࡉ͔͍ॲཧͷΈ w ΫϥΠΞϯτͷॲཧͷมભ ຊ͞ͳ͍͜ͱ
"CFNB57ͷྺ࢙
❝ςϨϏே࠷ߴܦӦऀͷૣՏ༸ͱαΠόʔΤʔ δΣϯτࣾͷ౻ా͕৾ɺञ੮Ͱҙؾ߹ͯ͠ ݄ʹ౻ాΛදͱͯ͠ઃཱɻ❞ "CFNB57ͷ͡·Γ ग़యϑϦʔඦՊࣄయʰΟΩϖσΟΞʢ8JLJQFEJBʣʱ
ແྉ ձһొͳ͠ ࣌ؒฤ
ຊ ֨ త ͳ ։ ൃ ։ ࢝
Ծ ։ ہ ُ ా ڵ ؽ ʹ উ ͬ ͨ Β ສ ԁ ࢹ ௌ ऀ ͕ ࡴ ౸ ͠ ࣌ ؒ μ ϯ ։ ہ प Ϗ σ Φ ػ ೳ ɾ ॎ ը ໘ Ϧ Ϧ ɹ ε ʔ ։ ہ प μ ϯ ϩ ɹ υ ɾ ͬ ͔ ͚ ࠶ ੜ Ϧ Ϧ ɹ ε ʔ ʔ ࢝ ಛ ൪ ແ ࣄ ࢝ Λ Γ Δ ࢝ ಛ ൪ ϐ ɹ Ϋ ଳ ͷ $ . ࣌ ʹ ࢹ ௌ ো ʔ ຊ ։ ہ ཌ ʹ ( $ 1 ͷ શ Ϧ ɹ δ ϣ ϯ ো ʔ ࣌ ؒ ϗ ϯ ω ς Ϩ Ϗ ແ ࣄ ৴ Λ ߦ ͍ ա ڈ ࠷ ߴ ࢹ ௌ Λ ه ʮ ʯ
"CFNB57ͷΞʔΩςΫνϟͷมભ
։ൃ։࢝ʙԾ։ہ
Ծ։ہ·Ͱ͋ͱϲ݄ʜ ऩ൪ͷ৴͕Ͱ͖Δࣄ͕Ϛετ
w ൪ද w Ϣʔβʔཧ w γΣΞػೳ w ৴ w τϥϯείʔμʔ
w ΠϯδΣεταʔόʢχϡʔε'3&4)ͷ৴ʣ w ฤཧπʔϧ Ծ։ہ·Ͱʹ࡞ͬͨͷ
ٕज़બఆ
ϓϥοτϑΥʔϜ w طʹݟͷ͋Δ"84͔($1ͷબࢶ w ΦϯϓϨίετҎ֎ͷϝϦοτ͕ͳ͘٫Լ
ͳͥ($1ΛબΜ͔ͩ ߴػೳ-ϩʔυόϥϯα 4UBDLESJWFS-PHHJOH#JH2VFSZͳͲ ͷϩάऩूूܭαʔϏε ωοτϫʔΫଳҬʹର͢Δίετͷ҆͞ (,&,VCFSOFUFT
($1ϦʔδϣϯΛબΜͰ ࣌ɺ($1ʹຊϦʔδϣϯແ͔ͬͨ ඞཁ͕͋ΕޙʹདྷΔຊϦʔδϣϯΛ͓͏ͱࢥ͍͕ͬͯͨ ཪ ։ہ͔࣌ΒຊͱؒͷΠϯδΣετͷ҆ఆੑ͕ ౦ژϦʔδϣϯ։࢝ޙ ͔Β౦ژʹҠߦ͢ΔਓతϦιʔεׂ͕͚ͳ͍
$ZCFS"HFOUͷόοΫΤϯυʹ͓͚Δ։ൃݴޠ +BWBˠ/PEFKTˠ(PMBOHͱҠΓมΘͬͨ ݴޠ "NFCB0XOE"8"ͳͲ͕(PMBOHΛ༻͠ɺ ࣌ͷ$50͕"8"͔Βདྷͨ͜ͱ͋Γɺ (PMBOHΛ࠾༻
ॳ($1Ͱఏڙ͞Ε͍ͯΔ$MPVE%BUBTUPSF͔ $MPVE#JHUBCMFʹ͔ͨͬͨ͠ ઌߦͯ͠ฤπʔϧΛ͢Δඞཁ͕͋Γɺ ΫΤϦཁ݅εΩʔϚͷॊೈͳมߋ͕ٻΊΒΕΔ։ൃঢ়گͷҝɺ .POHP%#Λ࠾༻ σʔλϕʔε
ΞʔΩςΫνϟ
w .JDSPTFSWJDFTΞʔΩςΫνϟΛ࠾༻ w ػೳ୯ҐͰͷϦϦʔεεέʔϧ͕Մೳ w ίϯςφԽʹΑΔϦιʔεͷ༗ޮ׆༻͕Մೳ .JDSPTFSWJDFT w ֤αʔϏεؒͷ௨৴H31$ 1SPUPDPM#V⒎FST
w (BUFXBZܥ#BDLFOEܥʹ͚ͨ(BUFXBZ1BUUFSO (BUFXBZ 4FSWJDF #BDLFOE 4FSWJDF %BUBCBTF
ɹɹ.JDSPTFSWJDFTͷ่յ ཪ
Կ͔͠ΒͷσʔλΛऔಘ͢Δखॱ (BUFXBZ4FSWJDF͔Β#BDLFOE4FSWJDFΛݺͼग़͢ ̑ QSPUPCVGΛ(BUFXBZ4FSWJDFʹऔΓࠐΉ ̐ #BDLFOE4FSWJDFͰσʔλϕʔεͷΫΤϦʔΛॻ͘ ̏ QSPUPCVGΛ#BDLFOE4FSWJDFʹऔΓࠐΉ ̎ ΫΤϦʔͷQSPUPCVGΛఆٛ
̍ ཪ
None
.JDSPTFSWJDFTͷ่յ ͍ظؒͰͷ։ൃͷͨΊɺ ΫΤϦ͕ෳࡶʹͳΔฤཧπʔϧΠϯδΣεταʔόͰɺ σʔλϕʔεΛ৮ΔΑ͏ʹʜ ཪ "ENJO (BUFXBZ .FEJB %BUBCBTF 8BUDINBO
൪ද
w σʔλϕʔε͔Β൪දΛऔಘ͢ΔͷͰͳ͘ɺ ͦͷ࣌ͷঢ়ଶΛεφοϓγϣοτͱͯ͠($4ʹอଘ͢Δ ൪ද w ฤ్தͷ൪ද͕Ϣʔβʔʹදࣔ͞ΕΔͷΛ͙ w ֤εφοϓγϣοτͷ൪දΛ࣮ػͰ֬ೝ͢Δ "ENJO (BUFXBZ
($4 .POHP%# 4OBQTIPU 4OBQTIPU (BUFXBZ 3FRVFTU 4OBQTIPU
৴
w )-4Ͱ৴͢ΔαʔόΛ։ൃ ৴αʔό 5SBOTDPEFS ($4 .FEJB 1SPYZ )-4 w ऩ൪ೲ͞Εͨө૾Λτϥϯείʔμʔ͕༧Ί
"#3Τϯίʔυύοέʔδϯά w ৴ʹඞཁͳϝλσʔλͱಈըηάϝϯτͷσʔλΛ($4ʹ อଘ
w χϡʔε'3&4)Λ৴͢ΔͨΊʹɺ)-4Λऔಘ͢Δ ΠϯδΣεταʔό 8BUDINBO Λ։ൃ w ಈըηάϝϯτͷใΛ.POHP%#ʹอଘ w ಈըηάϝϯτͷσʔλ 54
Λ($4ʹอଘ ੜ൪ͷ৴ 8BUDINBO )-4 ($4 .POHP%# .FEJB 1SPYZ )-4
ੜ൪ͷ৴ΞʔΩςΫνϟ /FXT ςϨϏேຊࣾʹઐ༻ͷϋʔυΣΞΛઃஔ ຊͰ"#3Τϯίʔυ)-4ύοέʔδϯά ςϨϏேຊ͔ࣾΒ࣌ؒ৴ ʜ 4PVSDF )BSEXBSF &ODPEFS )BSEXBSF
1BDLBHFS 8BUDINBO 6%1 )-4 ($1 4%*
ੜ൪ͷ৴ΞʔΩςΫνϟ 'SFTI '3&4)ͷҰ෦ͷ൪Λ৴ ʜ '3&4)ͷ৴ج൫Λͦͷ··ྲྀ༻ ৴αʔόʹରͯ͠ɺࢹௌऀͱಉ͡Α͏ʹ)-4Λऔಘ 4USFBNJOH 4FSWFS 8BUDINBO 4PVSDF
4PGUXBSF &ODPEFS 35.1 ($1 )-4 4%* '3&4)
։ൃ։࢝ʙԾ։ہͷ·ͱΊ
w (BUFXBZܥ w "1*αʔό HBUFXBZ w ཧ"1*αʔό BENJOHBUFXBZ
w ৴ܥ w ৴αʔό NFEJBQSPYZ w ΠϯδΣεταʔό XBUDINBO w #BDLFOEܥ w Ϣʔβʔཧ VTFS w ൪ද৴ NFEJB w γΣΞ TIBSF ࣌ͷαʔϏεҰཡ
։ൃ։࢝ʙԾ։ہͷ·ͱΊ .JDSPTFSWJDFTΞʔΩςΫνϟ σʔλϕʔεΛୟ͘αʔϏε͕͋ͬͨ σʔλετΞશαʔϏεͰڞ௨
Ծ։ہʙຊ։ہ
ຊ։ہ·Ͱ͋ͱϲ݄ʜ ੜ൪ɺࠂɺίϝϯτ͕Ͱ͖Δࣄ͕Ϛετ
w ੜ൪ͷ৴ w ϥΠϒτϥϯείʔμʔύοέʔδϟʔ w ࠂ৴ w ίϝϯτ ຊ։ہ·Ͱʹ࡞ͬͨͷ
ੜ൪ͷ৴
ੜ൪ͷ৴ΞʔΩςΫνϟ 4QPU ҙͷॴ͔Βಛఆͷ͚࣌ؒͩ৴ ʜ 8PX[B4USFBNJOH &OHJOF 8BUDINBO 4PVSDF 4PGUXBSF &ODPEFS
35.1 ($1 )-4 4%* ҙͷॴ͔Β35.1Ͱૹग़ ($1ʹઃஔͨ͠ετϦʔϛϯάαʔόͰ "#3Τϯίʔυ)-4ύοέʔδϯά
ຊ։ہޙͷ৴ΞʔΩςΫνϟ 4PVSDF )BSEXBSF &ODPEFS )BSEXBSF 1BDLBHFS 6%1 ($1 4%* 8PX[B4USFBNJOH
&OHJOF 4PVSDF 4PGUXBSF &ODPEFS 35.1 4%* '3&4) 8BUDINBO 4PVSDF 4PGUXBSF &ODPEFS 35.1 4%* /FXT 4QPU 'SFTI .POHP%# 5SBOTDPEFS ($4 .FEJB 1SPYZ )-4 ऩ൪ 7JEFP )-4
ࠂ৴
w "CFNB57ͷࠂہ͕༻ҙͨ͠"Eαʔόͱ࿈ܞ w ൪දͷεέδϡʔϧʹ߹ΘͤͯඞཁͳࠂΛ"Eαʔόʹ ͍߹Θͤ w ༧Ίτϥϯείʔυ͞ΕͨಈըηάϝϯτΛ($4͔Βऔಘ ࠂ࿈ܞ "E 4FSWFS
.FEJB 1SPYZ )551 ($4 )551
ࠂૠೖ w ੜ൪ ΞϯλΠϜ w ࠂΛૠೖ͢Δ͕࣌ؒະ֬ఆ w Կ͔͠ΒͷܗࣜͰࠂૠೖλΠϛϯάΛૹΔ w
8BUDINBO͕औಘ͢Δ)-4ʹ4$5&ܗࣜͰૠೖ w ऩ൪ ϑΟοΫελΠϜ w ༧ΊฤπʔϧͰܾΊͨ࣌ؒʹࠂΛૠೖ
4$5& #EXTINF:5.005, 20160226T110640-01-503087.ts #EXTINF:5.005, 20160226T110640-01-503088.ts #EXTINF:5.005, 20160226T110640-01-503089.ts #EXT-X-CUE-OUT:DURATION=60.000,ID=ad-test001 #EXTINF:5.005, 20160226T110640-01-503090.ts
ࠂ ൪
ੜ൪ͷࠂૠೖ /FXT ςϨϏேຊ͔ࣾΒ࣌ؒ৴ χϡʔεͷ"14 ൪ཧஔ Ͱ$.࣌ؒΛཧ 4%*ʹ4$5&ͷΩϡʔ৴߸ΛଟॏԽ͠ɺ ύοέʔδϟʔͰ)-4ʹλάΛૠೖ ʜ 4PVSDF
)BSEXBSF &ODPEFS )BSEXBSF 1BDLBHFS 8BUDINBO 6%1 )-4 ($1 4%* 7"/$ *OTFSUFS 4%* "14 $6&
ੜ൪ͷࠂૠೖ 4QPU ҙͷॴ͔Βಛఆͷ͚࣌ؒͩ৴ ৴ཧπʔϧ͔Β35.1Ͱ$.λΠϛϯάΛૹ৴ ετϦʔϛϯάαʔόͷύοέʔδϯά࣌ʹɺ )-4ʹλάΛૠೖ ʜ 8PX[B4USFBNJOH &OHJOF 8BUDINBO
4PVSDF 4PGUXBSF &ODPEFS 35.1 ($1 )-4 -JWF5PPM 35.1 4%*
λʔήςΟϯάࠂ ։ہॳɺ$.ΛύʔιφϥΠζͰ͖Δઃܭͩͬͨ ཪ ϓϨΠϦετΦϦδϯɺಈըηάϝϯτ$%/ܦ༝Ͱ৴ .FEJB 1SPYZ $%/
Ծ։ہʙຊ։ہͷ·ͱΊ
Ծ։ہʙຊ։ہͷ·ͱΊ ੜ൪/FXT'SFTI4QPUͷछྨ ϓϨΠϦετ$%/Λ௨ͣ͞৴ ੜ൪ͰϦΞϧλΠϜʹ$.Λૠೖ
ຊ։ہʙप
w ಈըηάϝϯτͷΩϟογϡ w ϩά w ϝτϦΫεͷՄࢹԽ w ݕࡧ w ։ൃڥɺςετڥͷඋ
ຊ։ہޙΔ͜ͱࢁੵΈ
ಈըηάϝϯτͷΩϟογϡ
ੜ൪ͷಈըηάϝϯτͷετϨʔδͱͯ͠ɺ($4 Λ༻͍ͯͨ͠ ಈըηάϝϯτͷΩϟογϡ ੜ൪ͷಈըηάϝϯτΛΩϟογϡ w ($4͕୯ҰোʹͳΔ w ($4ͷҰ࣌తͳεϧʔϓοτͷԼ ՝
8BUDINBOͰऔಘͨ͠ಈըηάϝϯτͷҰ࣌ετϨʔδ ͱͯ͠3FEJTΛՃ ಈըηάϝϯτͷΩϟογϡ 8BUDINBO )-4 ($4 .POHP%# 3FEJT
ϩάվળ
qVFOUEΛ༻͍͕ͯͨ͠ɺ(PMBOHͰͷѻ͍ͮΒ͞ɺ qVFOUEࣗମͷϦιʔεͷཧͳͲ͕ඞཁͩͬͨ ϩάվળ $MPVE1VC4VCͱ#*H2VFSZʹஔ͖͑ ՝
w ֤ήʔτΣΠͰ$MPVE1VC4VCʹϩάΛྲྀͯ͠ɺ όοναʔϏε͕#JH2VFSZʹ*OTFSU͢Δܗ w ϩάղੳνʔϜͳͲ͕ҙͷτϐοΫΛ 4VCTDSJCF͢Δ͜ͱՄೳ ϩάվળ (BUFXBZ 4FSWJDF $MPVE
1VC4VC #JH2VFSZ #BUDI *OTFSUFS
ϝτϦΫεͷՄࢹԽ
4UBDLESJWFS.POJUPSJOHͳͲΛ༻͍͕ͯͨ͠ɺ ֤αʔϏεͷৄࡉͳϝτϦΫεͳͲΛՄࢹԽ͍ͨ͠ ϝτϦΫεͷՄࢹԽ 1SPNFUIFVT (SBGBOBͰϞχλϦϯάڥΛߏங ՝
ϞχλϦϯάڥ QSPNFUIFVTHSQD (SBGBOB QSPNFUIFVT NPOHPEC QSPNFUIFVTIUUQ QSPNFUIFVTLT QSPNFUIFVTSFEJT QSPNFUIFVTOPEF HDF
QSPNFUIFVTOPEF LT QSPNFUIFVTOPEF NJTD 4FSWJDF .POJUPS QSPNFUIFVTTFSWFST 1SPNFUIFVT 0QFSBUPS FYQPSUFST BMFSUNBOBHFS 4MBDL RVFSZ FYFD NBOBHF pOE UBSHFUT QVMM NFUSJDT QVTI BMFSUT OPUJGZ
࢝
w େրͷ$.ʹೖͬͨλΠϛϯάͰ࠶ੜ͕Ͱ͖ͳ͘ͳΔো w ϐʔΫଳͷͷಉ࣌ଓͷଟ͍࣌ؒʹൃੜ ࢝ ݄ʹࢹௌ͕ݟࠐ·ΕΔ൪͕͋ΔͨΊ ͳΜͱͯ͠ରԠ͢Δඞཁੑ
w ৴αʔό͔Βࠂαʔόͷ͍߹Θ͕ͤ٧·͍ͬͯͨ w ࠂαʔό͔Βͷ݁ՌΛΩϟογϡ ࢝ͷରԠ ࠂαʔόͷ͍߹ΘͤΛΩϟογϡ ̍
ࠂίϝϯτͷΩϟογϡʹΑͬͯෛՙ͕͔͔Δ 3FEJT$MVTUFSΛഒʹεέʔϧΞτ ࢝ͷରԠ 3FEJT$MVTUFSεέʔϧΞτ ̎ ݄ʹݕূ ݄ʹόʔδϣϯΞοϓΛ࣮ࢪ ➔SFEJTUSJCSC ʹόά͕͋Γɺεέʔϧ͕ग़དྷͳ͍
݄ ແࣄ৴
ຊ։ہʙपͷ·ͱΊ
ຊ։ہʙपͷ·ͱΊ ڥͷඋվળΛߦͬͨ Ͱ3FEJTͷόʔδϣϯΞοϓΛ࣮ࢪ ࢝ϐʔΫଳʹো͕ൃੜ
पʙप
w ຊͱؒͷΠϯδΣετ҆ఆԽ w ಈըηάϝϯτΩϟογϡͷ3FEJTͷ࠶ߏங w $.Ωϡʔͷૹ৴Λ35.1͔Β)551 ৴࣭ͷ্
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ࢹௌऀ͕ࡴ౸͠ɺ ୈҰࢼ߹͕࢝·Δલʹαʔό͕,0͞ΕΔ ُాڵؽʹউͬͨΒ1000ສԁ http://nlab.itmedia.co.jp/nl/articles/1705/07/news025.html 記事提供: ねとらぼ
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ো͕ൃੜ͠ͳ͍͜ͱ͕هࣄʹ ʮ࣌ؒϗϯωςϨϏʯ http://nlab.itmedia.co.jp/nl/articles/1711/03/news027.html 記事提供: ねとらぼ
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