配信アプリのためのリアルタイムプッシュ通知ぼかしの夢

Transcript

1. ഑৴ΞϓϦͷͨΊͷ
   ϦΞϧλΠϜϓογϡ௨஌΅͔͠ͷເ ʙ௿ෛՙͰߴ଎ͳϓϥΠόγʔอޢΛ໨ࢦͯ͠ʙ 🌟 🌟
2. /BSVLJ
   $IJHJSB גࣜձࣾ
   ϛϥςΟϒ !@OBSV@KQO OBSVKQO
3. ϛϥςΟϒ͸ϞόΠϧ୺຤͚ͩͰखܰʹ഑৴͕Ͱ͖ΔΞϓϦ🌟 ୺຤ͷը໘ͷө૾͕
   ͦͷ··ࢹௌऀʹಧ͘ʂ 📱 ഑৴ऀ 📱 ࢹௌऀ
4. ͔͠͠ɺϓογϡ௨஌ʹΑͬͯ
   ೔ৗͷ΍ΓͱΓͳͲ͕өΓࠐΜͰ͠·͏৔߹΋͋Δ ϝʔϧ΍ϦϚΠϯμͳͲͷ಺༰͕
   ഑৴ʹөΓࠐΜͰ͠·͏ 📱 ഑৴ऀ 📱 ࢹௌऀ
5. ࠓճ͓࿩͢͠ΔϦΞϧλΠϜϓογϡ௨஌΅͔͠ͱ͸ 📱 ഑৴ऀ 📱 ࢹௌऀ ഑৴αʔόʔ 􀪹 ഑৴ऀͷ୺຤Ͱө૾Λௐ΂ɺϓογϡ௨஌Λݕग़͠
   ө૾ΛՃ޻͔ͯ͠Β഑৴αʔόʔʹૹΔ
6. աڈ  ʹ΋ಉ༷ͷ௅ઓ͕͋Γ·ͨ͠ .JSSBUJW
   5FDI
   #MPH .JSSBUJWʹ͓͚Δϓογϡ௨஌΅͔͠΁ͷ௅ઓ ɾॲཧͷύϑΥʔϚϯεʹ՝୊͕͋ͬͨ
   ɾ04ͷΞοϓσʔτͰ௨஌ͷΞχϝʔγϣϯ͸มΘΓɺγϟυ ΢΋ബ͘ͳΓ೉қ౓্͕͕͍ͬͯΔ
7. αʔόʔαΠυͰݱࡏՔಇ͍ͯ͠ΔγεςϜ΋͋Γ·͢ ઌ೔ͷ
   (P
   $POGFSFODF
   
   Ͱ΋
   (P$HPͰө૾ɾԻ੠ͷϦΞϧλΠ ϜॲཧΛ΍Δ·ͰͷಓͷΓ
   ͱ͍͏λΠτϧͰ͓࿩͠͞Ε͍ͯ·͢ .JSSBUJW
   5FDI
   #MPH NT
   ҎԼͷϦΞϧλΠϜΦϒδΣΫτݕग़ը૾ॲཧΛ໨ࢦͯ͠
   
   (Pͷ഑৴αʔόαΠυͰ௨஌΅͔͠Λ࣮૷ͯ͠Έͨ͜ͱ
8. ࠓճͷϦΞϧλΠϜϓογϡ௨஌΅͔͠ͷओࢫ ΫϥΠΞϯτͰݕग़ͱՃ޻Λߦͬͨ৔߹ʹ
   ࣮༻ʹ଍Δਫ਼౓ͱύϑΥʔϚϯεΛୡ੒Ͱ͖Δ͔
   ٕज़తʹݕূΛ͠ɺՄೳੑΛ୳Δ ΞϓϦΞΠίϯͷൺֱͳͲɺΫϥΠΞϯτͰͳ͍ͱ࣮ݱ͕೉͍͠ॲཧ΋͋Δ
9. ࣮ࡍͷಈ͖
10. ഑৴ऀ ࢹௌऀ
11. ഑৴ऀ ࢹௌऀ
12. ௨஌΅͔͠ͷཁ݅ ɾϓογϡ௨஌ͷܗঢ়Λݕग़ͨ͠Βɺ഑৴୺຤ଆͰө૾ΛՃ޻͢Δ
    ɹɾͨͩ͠ɺϛϥςΟϒ͔Βͷ௨஌͸Ճ޻͠ͳ͍
    ɹɾ୺຤ͷճసʹରԠ͢Δ
    ɹɾμʔΫϞʔυʹରԠ͢Δ
    ɾϦΞϧλΠϜͷॲཧʹ଱͑ΔύϑΥʔϚϯεΛग़͢
13. ௨஌΅͔͠ͷཁ݅ ɾϓογϡ௨஌ͷܗঢ়Λݕग़ͨ͠Βɺ഑৴୺຤ଆͰө૾ΛՃ޻͢Δ
    ɹɾͨͩ͠ɺϛϥςΟϒ͔Βͷ௨஌͸Ճ޻͠ͳ͍
    ɹɾ୺຤ͷճసʹରԠ͢Δ
    ɹɾμʔΫϞʔυʹରԠ͢Δ
    ɾϦΞϧλΠϜͷॲཧʹ଱͑ΔύϑΥʔϚϯε < 33ms Λग़͢
14. J04
    ʹ͓͚Δը໘࿥ըͱө૾ͷܗࣜΛ஌Δ
    "DDFMFSBUF
    GSBNFXPSL
    Λ஌Δ
15. J04
    ʹ͓͚Δը໘࿥ըͱө૾ͷܗࣜΛ஌Δ
    "DDFMFSBUF
    GSBNFXPSL
    Λ஌Δ
16. #SPBEDBTU
    6QMPBE
    &YUFOTJPO
17. override func processSampleBuffer( _ sampleBuffer: CMSampleBuffer, with sampleBufferType: RPSampleBufferType ) { switch sampleBufferType { case RPSampleBufferType.video: break case RPSampleBufferType.audioApp: break case RPSampleBufferType.audioMic: break @unknown default: fatalError("Unknown type of sample buffer") } } 4BNQMF)BOEMFSTXJGU
18. override func processSampleBuffer( _ sampleBuffer: CMSampleBuffer, with sampleBufferType: RPSampleBufferType ) { switch sampleBufferType { case RPSampleBufferType.video: break case RPSampleBufferType.audioApp: break case RPSampleBufferType.audioMic: break @unknown default: fatalError("Unknown type of sample buffer") } } 4BNQMF)BOEMFSTXJGU
19. override func processSampleBuffer( _ sampleBuffer: CMSampleBuffer, with sampleBufferType: RPSampleBufferType ) { switch sampleBufferType { case RPSampleBufferType.video: break ॲཧ࣌ؒͱ࢖༻ϝϞϦͷ੍໿ ͜ͷؔ਺͸ܧଓతʹݺ͹Εɺಈը΍Ի੠ʹରԠ͢Δ
    TBNQMF#VGGFS
    ͕ڙڅ͞ΕΔ
    ಈը͕
    '14
    ͱ͢Δͱɺඵؒʹ
    
    ճݺ͹ΕΔʢ໿NTִؒʣ
    ϝϞϦ࢖༻ྔ͸؂ࢹ͞Ε͍ͯͯɺ.#
    Λ௒͑Δͱϓϩηε͕ऴྃ͢Δ
20. case RPSampleBufferType.video: let imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer)! let pixelFormatType = CVPixelBufferGetPixelFormatType(imageBuffer) // pixelFormatType == kCVPixelFormatType_420YpCbCr8BiPlanarFullRange TBNQMF#VGGFS
    ͔ΒಈըͷϑϨʔϜʹ૬౰͢Δ
    JNBHF#VGGFS
    Λऔಘͯ͠
    ϑΥʔϚοτΛௐ΂Δ L$71JYFM'PSNBU5ZQF@:Q$C$S#J1MBOBS'VMM3BOHF
21. ·ͣ͸਌͠Έͷ͋Δ
    L$71JYFM'PSNBU5ZQF@"3(#
    ͷߏ଄Λ஌Δ
22. 0 1 2 3 4 5 6 7 8
23. L$71JYFM'PSNBU5ZQF@"3(#
    ͸
    6*OU
    ͷ஋͕
    " 3 ( #
    ͷॱʹฒΜͰ͍Δ 6*OU [ … A0, R0, G0, B0, A1, R1, G1, B1, A2, R2, G2, B2, … A3, R3, G3, B3, A4, R4, G4, B4, A5, R5, G5, B5, … A6, R6, G6, B6, A7, R7, G7, B7, A8, R8, G8, B8, … … ] 0 1 2 3 4 5 6 7 8
24. // (0,0) Λࢦ͢ΞυϨε let address = CVPixelBufferGetBaseAddress(imageBuffer) // ઌ಄ͷϐΫηϧ͔Β ARGB ͷॱͰ৭৘ใ͕֨ೲ͞Ε͍ͯΔ let arbg = address!.assumingMemoryBound(to: UInt8.self) let a_0_0 = arbg[0] // A let r_0_0 = arbg[1] // R let g_0_0 = arbg[2] // G let b_0_0 = arbg[3] // B let a_1_0 = arbg[4] // A L$71JYFM'PSNBU5ZQF@"3(#
    ܗࣜͷ
    ը૾σʔλͷઌ಄ΞυϨεΛऔಘͯ͠ɺըૉʹΞΫηε͢Δ
25. L$71JYFM'PSNBU5ZQF@:Q$C$S#J1MBOBS'VMM3BOHF
    ͷߏ଄Λ஌Δ
26. L$71JYFM'PSNBU5ZQF@:Q$C$S#J1MBOBS'VMM3BOHF
    ͸
    ً౓ : ɾ৭ࠩ $C$S ͷͭͷฏ໘͔Βߏ੒͞Ε͍ͯΔ ً౓ : ฏ໘ ৭ࠩ $C$S ฏ໘ ը໘දࣔ
27. ً౓ : ฏ໘͸ϐΫηϧͷً౓ʹରԠ͢Δ
    6*OU
    ͷ஋ d ͕ॱʹฒΜͰ͍Δ 6*OU [… Y0, Y1, Y2, Y3,… Y4, Y5, Y6, Y7,… Y8, Y9, Y10, Y11,… Y12, Y13, Y14, Y15,… …] 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
28. ৭ࠩ $C$S ฏ໘Ͱ͸ɺ$C
    ͱ
    $S
    ͷ૊Έ߹ΘͤͰ৭Λදݱ͢Δ ˞ը૾͸
    IUUQTKBXJLJQFEJBPSHXJLJ:67
    ΑΓҾ༻ ࣅͨߏ੒ͷ
    67
    ৭ฏ໘ͷྫʢ:
    ͷ৔߹ʣ
29. ৭ࠩ $C$S ฏ໘͸
    6*OU
    ͷ஋ d ͕
    $C
    $S
    ͷॱʹฒΜͰ͍Δ 0 1 2 3 6*OU [… Cb0, Cr0, Cb1, Cr1,… Cb2, Cr2, Cb3, Cr3,… …]
30. L$71JYFM'PSNBU5ZQF@:Q$C$S#J1MBOBS'VMM3BOHF
    Ͱ͸
    ৭ࠩ $C$S ฏ໘ͷղ૾౓͸ɺً౓ : ฏ໘ͷ൒෼Ͱ͋Δ ً౓ : ฏ໘ ৭ࠩ $C$S ฏ໘ ը໘දࣔ
31. ً౓ : ฏ໘ ৭ࠩ $C$S ฏ໘ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 L$71JYFM'PSNBU5ZQF@:Q$C$S#J1MBOBS'VMM3BOHF
    Ͱ͸
    ৭ࠩ $C$S ฏ໘ͷղ૾౓͸ɺً౓ : ฏ໘ͷ൒෼Ͱ͋Δ ը໘දࣔ
32. ը໘දࣔ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ً౓ : ฏ໘ ৭ࠩ $C$S ฏ໘ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 ը໘දࣔ
    
    :
    $C
    $S
    
33. ը໘දࣔ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ً౓ : ฏ໘ ৭ࠩ $C$S ฏ໘ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 ը໘දࣔ
    
    :
    $C
    $S
    
34. ը໘දࣔ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ً౓ : ฏ໘ ৭ࠩ $C$S ฏ໘ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 ը໘දࣔ
    
    :
    $C
    $S
    
35. L$71JYFM'PSNBU5ZQF@:Q$C$S#J1MBOBS'VMM3BOHF
    ܗࣜͷ
    ֤ฏ໘ͷઌ಄ΞυϨεΛऔಘ͢Δ // ً౓(Y)ฏ໘ͷઌ಄Λࢦ͢ΞυϨε let address0 = CVPixelBufferGetBaseAddressOfPlane(imageBuffer, 0) // ৭ࠩ(CbCr)ฏ໘ͷઌ಄Λࢦ͢ΞυϨε let address1 = CVPixelBufferGetBaseAddressOfPlane(imageBuffer, 1)
36. ɾ"3(#
    ܗࣜͷํ͕௚ײతͰѻ͍΍͍͢
    ɾ3FQMBZ,JU
    ͔Β໯͑Δͷ͸
    :Q$C$S#J1MBOBS'VMM3BOHF
    ܗࣜ
    ɾ:Q$C$S#J1MBOBS'VMM3BOHF
    ܗࣜ͸
    "3(#
    ܗࣜʹม׵͢Δ͜ͱ͕Ͱ͖Δ
    ɹɾ͔͠͠ɺม׵ʹ͸ϝϞϦͱܭࢉͷίετ͕͔͔Δʜ
    ɹɹɾϝϞϦɿը໘ճస΋ߟྀ͢Δͱɺݩσʔλͱಉ͚ͩ͡ͷ༰ྔ͕ඞཁ
    ɹɹɾܭࢉɿݩσʔλͷ͢΂ͯͷըૉͷม׵͕ඞཁ
    ɹɾม׵͠ͳ͚Ε͹ɺܭࢉʹඞཁͳϕΫτϧ෼͚ͩͷϝϞϦΛ֬อ͢Ε͹े෼ ˠ
    :Q$C$S#J1MBOBS'VMM3BOHF
    ܗࣜͷ··ܭࢉ͢ΔಓΛબΜͩ
37. J04
    ʹ͓͚Δը໘࿥ըͱө૾ͷܗࣜΛ஌Δ
    "DDFMFSBUF
    GSBNFXPSL
    Λ஌Δ
38. "DDFMFSBUF
    GSBNFXPSL
    ʹؚ·Ε͍ͯΔϥΠϒϥϦ ɾ#//4ɿχϡʔϥϧωοτϫʔΫ
    ɾW%41ɿσδλϧ৴߸ॲཧ
    ɾW*NBHFɿը૾Ճ޻
    ɾW'PSDFɿߦྻͱ௒ӽؔ਺
    ɾ4QBSTF
    4PMWFST
    #-"4
    BOE
    -"1"$,ɿߦྻܭࢉ
39. ɾ#//4ɿχϡʔϥϧωοτϫʔΫ
    ɾW%41ɿσδλϧ৴߸ॲཧ
    ɾW*NBHFɿը૾Ճ޻
    ɾW'PSDFɿߦྻͱ௒ӽؔ਺
    ɾ4QBSTF
    4PMWFST
    #-"4
    BOE
    -"1"$,ɿߦྻܭࢉ "DDFMFSBUF
    GSBNFXPSL
    ʹؚ·Ε͍ͯΔϥΠϒϥϦ
40. ॲཧͷྫͱܭଌ͔Β
    W%41
    Λ஌Δ IUUQTHJUIVCDPNOBSVKQO.FBTVSF"DDFMFSBUFT 9$5FTU
    ͷ
    NFBTVSF
    Λ༻͍ͯॲཧ࣌ؒΛܭଌͯ͠ൺֱ͢Δ .FBTVSF"DDFMFSBUFT
41. let length = 1_000_000 let v1 = UnsafeMutablePointer<Float>.allocate(capacity: length) let v2 = UnsafeMutablePointer<Float>.allocate(capacity: length) v1.initialize(repeating: 10, count: length) v2.initialize(repeating: 20, count: length) ௕͞ສͷߦྻʹର͢Δॲཧ଎౓Λൺֱ͢Δ
42. // Others for i in 0..<length { out[i] = v1[i] + v2[i] } // Accelerate vDSP_vadd(v1, 1, v2, 1, out, 1, vDSP_Length(length)) 0UIFST "DDFMFSBUF <NT> <NT> ߦྻͷཁૉͷ଍͠ࢉ
43. // Others for i in 0..<length { out[i] = v1[i] * v2[i] } // Accelerate vDSP_vmul(v1, 1, v2, 1, out, 1, vDSP_Length(length)) 0UIFST "DDFMFSBUF <NT> <NT> ߦྻͷཁૉͷֻ͚ࢉ
44. ۮ਺ΠϯσοΫε     ͷཁૉʹͷΈΛ଍͢ // Others (whole loop) for i in 0..<length { if i % 2 == 0 { v[i] = v[i] + 1 } } // Others (loop with stride) for i in stride(from: 0, to: length, by: 2) { v[i] = v[i] + 1 } // Accelerate var value: Float = 1 vDSP_vsadd(v, 2, &value, v, 2, vDSP_Length(length / 2)) 0UIFST
    XIPMF
    MPPQ 0UIFST
    MPPQ
    XJUI
    TUSJEF "DDFMFSBUF <NT> <NT> <NT>
45. 
    ΑΓେ͖͍
    TUSJEF
    Λࢦఆͯ͠
    ҰఆͷִؒΛۭ͚ͨϕΫτϧ্ͷܭࢉ͕Ͱ͖Δ // Accelerate var value: Float = 1 vDSP_vsadd(v, 2, &value, v, 2, vDSP_Length(length / 2)) // Others (loop with stride) for i in stride(from: 0, to: length, by: 2) { v[i] = v[i] + 1 } " 3 # (
    ΍
    $C $S
    ͷΑ͏ʹ
    ౳ִؒͰಉ͡छྨͷ৘ใ͕ฒΜͰ͍Δ৔߹ͳͲʹศར
46. TUSJEF
    ͱΞΫηεͰ͖Δըૉͷؔ܎
    TUSJEF
     TUSJEF
     TUSJEF
     TUSJEF
    
47. W*NBHF https://developer.apple.com/documentation/accelerate/vimage vImage is particularly suited for: • Ef fi ciently processing large images • Real-time video processing software • Scienti fi c applications that require high-accuracy numerical calculations ެࣜΑΓҾ༻
48. W*NBHF $71JYF#VGGFS QMBOF let data = UnsafeMutableRawPointer(addressOfPlane) let buffer = vImage_Buffer( data: data, height: height, width: width, rowBytes: rowBytes ) W*NBHF@#VGGFS
49. W*NBHF https://developer.apple.com/documentation/accelerate/convolution ৭ʑͳϑΥʔϚοτͷσʔλͷՃ޻ʹରԠ͍ͯ͠Δ
    ྫɿW*NBHF$POWPMWF@"3(# W*NBHF$POWPMWF@1MBOBS
    W*NBHF$POWPMWF@1MBOBS'
    W*NBHF$POWPMWF@1MBOBS'
    W*NBHF$POWPMWF@"3(#'
    W*NBHF$POWPMWF@"3(#''''
50. W*NBHF
    "QQMZJOH
    W*NBHF
    PQFSBUJPOT
    UP
    SFHJPOT
    PG
    JOUFSFTU https://developer.apple.com/documentation/accelerate/applying_vimage_operations_to_regions_of_interest
51. ௨஌΅͔͠ͷཁ݅Λࢥ͍ग़͢ ɾϓογϡ௨஌ͷܗঢ়Λݕग़ͨ͠Βɺ഑৴୺຤ଆͰө૾ΛՃ޻͢Δ
    ɹɾͨͩ͠ɺϛϥςΟϒ͔Βͷ௨஌͸Ճ޻͠ͳ͍
    ɹɾ୺຤ͷճసʹରԠ͢Δ
    ɹɾμʔΫϞʔυʹରԠ͢Δ
    ɾϦΞϧλΠϜͷॲཧʹ଱͑ΔύϑΥʔϚϯεΛग़͢
52. ϓογϡ௨஌΅͔࣮͠ݱ΁ͷεςοϓ  ϓογϡ௨஌ྖҬΛݕग़͢Δ
     ΞΠίϯྖҬΛൺֱ͢Δ
     ө૾ΛՃ޻͢Δ
53. ϓογϡ௨஌΅͔࣮͠ݱ΁ͷεςοϓ  ϓογϡ௨஌ྖҬΛݕग़͢Δ
     ΞΠίϯྖҬΛൺֱ͢Δ
     ө૾ΛՃ޻͢Δ
55. ݕग़͍ۣͨ͠ܗ
56. ݕग़͍ۣͨ͠ܗ ଆ໘Λݟ͚ͭΔ
    ˠ
    ఈΛݟ͚ͭΔ
    ˠ
    શମͷۣܗΛܾΊΔ
57. ϓογϡ௨஌ͷࠨӈͷϚʔδϯ͸୺຤αΠζຖʹҰఆ
58. ୺຤ͷը໘αΠζ͝ͱʹϓογϡ௨஌ͷࠨӈͷϚʔδϯΛܭଌͯ͠
    ݕग़ͷࡍͷܭࢉʹ࢖༻͍ͯ͠Δ … // iPhone 12,13,14 iPhone Pro 12,13 "1170x2532": .init(width: 1170, height: 2532, x: 24), "2532x1170": .init(width: 2532, height: 1170, x: 432), // iPhone Pro Max 14 "1290x2796": .init(width: 1290, height: 2796, x: 24), "2796x1290": .init(width: 2796, height: 1290, x: 564), // iPad 3rd,4th,5th,6th / iPad mini 2nd,3rd,4th,5th / iPad Air 1st,2nd "1536x2048": .init(width: 1536, height: 2048, x: 212), "2048x1536": .init(width: 2048, height: 1536, x: 468), …
59. ϓογϡ௨஌ͷଆ໘Λ؍࡯͢Δ
60. ϓογϡ௨஌ͷଆ໘ʹ͸ڥք͕͋Γɺ಺ଆͷྖҬ͸৭ͷมԽ͕খ͍͞ ڥք ಺ଆ ϕΫτϧܭࢉͷ໰୊ʹ຋༁ͯ͠ɺ"DDFMFSBUF
    Ͱܭࢉ͍ͨ͠
61. ৭ ً౓ ͷมԽ : : c
    :
    
    :
    c
62. : : c
    :
    
    :
    c : : c
    :
    
    :
    c  ৭ ً౓ ͷมԽͷେখ େ খ
63. ৭ ً౓ ৭ࠩ ͷมԽ :
    $C
    $S :
    $C
    $S c
    :
    
    :
    c
    
    c
    $C
    
    $C
    c
    
    c
    $S
    
    $S
    c
64. ৭ ً౓ ৭ࠩ ͷมԽ :
    $C
    $S c
    :
    
    :
    c
    
    c
    $C
    
    $C
    c
    
    c
    $S
    
    $S
    c :
    $C
    $S ˞Ҏ߱Ͱ͸ɺ؆୯ͷͨΊʹً౓ͷΈͷܭࢉͱݟཱͯͯߟ͑·͢
65. ڥք
    ˠ
    ৭ͷมԽ͕େ͖͍
    ಺ଆͷྖҬ
    ˠ
    ৭ͷมԽ͕খ͍͞ ڥք ಺ଆ
66. W W ڥք
    ˠ
    ৭ͷมԽ͕େ͖͍ vDSP_vsub(v1, 1, v2, 1, boundary, 1, length) vDSP_vabs(boundary, 1, boundary, 1, length) CPVOEBSZ
    
    c
    W
    
    W
    c ڥքͷϕΫτϧͷཁૉͷࠩͷઈର஋͸ɺҰఆΑΓେ͖͍ CPVOEBSZ<J>
    
    DPOTU
67. W W ಺ଆͷྖҬ
    ˠ
    ৭ͷมԽ͕খ͍͞ vDSP_vsub(v2, 1, v3, 1, inner, 1, length) vDSP_vabs(inner, 1, inner, 1, length) JOOFS
    
    c
    W
    
    W
    c ಺ଆͷϕΫτϧͷཁૉͷࠩͷઈର஋͸ɺҰఆΑΓখ͍͞ JOOFS<J>
    
    DPOTU
68. JOOFS ಺ଆͷྖҬʹରͯ͠ɺڥքͷํ͕৭ͷมԽ͕େ͖͍ vDSP_vdiv(boundary, 1, inner, 1, out, 1, length) PVU<J>
    
    CPVOEBSZ<J>
    
    JOOFS<J> ϓογϡ௨஌ͷଆ໘Ͱ͸ɺ৭ͷมԽͷൺ͕ҰఆΑΓେ͖͍ CPVOEBSZ PVU<J>
    
    CPVOEBSZ<J>
    
    JOOFS<J>
    
    DPOTU େ খ
69. // ڥք vDSP_vsub(v1, 1, v2, 1, boundary, 1, length) vDSP_vabs(boundary, 1, boundary, 1, length) // ಺ଆ vDSP_vsub(v2, 1, v3, 1, inner, 1, length) vDSP_vabs(inner, 1, inner, 1, length) // ڥք / ಺ଆ vDSP_vdiv(boundary, 1, inner, 1, out, 1, length) ϓογϡ௨஌͕௨ա͢Δ۠ؒʹ౉ͬͯܭࢉΛ͢Δ
70. ࠨӈͰಉ࣌ʹ৚݅Λຬͨ͢Α͏ͳɺҰఆҎ্ͷ௕͞ͷ͋ΔྖҬΛ୳͠
    ϓογϡ௨஌ͷଆ໘Ͱ͋ΔͱΈͳ͢
71. ϓογϡ௨஌ͷଆ໘͕ݕग़Ͱ͖ͨ
72. ϓογϡ௨஌ͷఈΛ؍࡯͢Δ
73. ϓογϡ௨஌ͷ಺ଆ͸৭ͷมԽ͕খ͘͞ɺڥքͰ৭ͷมԽ͕͋Δ ڥք ಺ଆ ϕΫτϧܭࢉͷ໰୊ʹ຋༁ͯ͠ɺ"DDFMFSBUF
    Ͱܭࢉ͍ͨ͠
74. ϕΫτϧΛͣΒͯ͠Ҿ͖ࢉ͢ΔͱɺมԽ͕Θ͔Δ [100, 100, 100, 10, 10, 10, 10, …]
75. [100, 100, 100, 10, 10, 10, 10, …] [100, 100, 100, 10, 10, 10, 10, …] ϕΫτϧΛͣΒͯ͠Ҿ͖ࢉ͢ΔͱɺมԽ͕Θ͔Δ
76. [100, 100, 100, 10, 10, 10, 10, …] [100, 100, 100, 10, 10, 10, 10, …] - [ 0, 0, 90, 0, 0, 0, …] ϕΫτϧΛͣΒͯ͠Ҿ͖ࢉ͢ΔͱɺมԽ͕Θ͔Δ
77. BEWBODFE
    ͰͣΒͨ͠ϕΫτϧͷࠩΛܭࢉ͠ɺ৭ͷมԽ఺Λ୳Δ vDSP_vsub(v, 1, v.advanced(by: 1), 1, out, 1, length-1) vDSP_vabs(out, 1, out, 1, length) PVU
    
    c
    W
    
    WBEWBODFE 
    c PVU<J>
    ͕ҰఆΑΓେ͖͍৔ॴ͕ϓογϡ௨஌ͷఈͷީิʹͳΔ W WBEWBODFE 
78. ఈͷީิ͕ܾ·ͬͨΒɺఈ͔Ͳ͏͔ݕࠪΛ͢Δ
79. JOOFS CPVOEBSZ ଆ໘ͷݕग़ͱಉ༷ʹɺ಺෦ͱڥքͷ৭ͷࠩͷେ͖͞Λܭࢉͯ͠
    ൣғ಺Ͱ಺෦ͷมԽ͕খ͘͞ɺڥքͷมԽ͕େ͖͍͜ͱΛ֬ೝ͢Δ
80. ϓογϡ௨஌ͷଆ໘ͱఈ͕ݕग़Ͱ͖ͨ
81. ϓογϡ௨஌ͷఱҪ͸ఈͷ൓ରʹ͋ΔͷͰ͙͢Θ͔Δ
82. ݕग़Ͱ͖·ͨ͠ʂ
    🎉 ۣܗͷݕग़
    
    ʶ
    
    <NT>
    J1IPOF1SP
83. ϓογϡ௨஌΅͔࣮͠ݱ΁ͷεςοϓ  ϓογϡ௨஌ྖҬΛݕग़͢Δ
     ΞΠίϯྖҬΛൺֱ͢Δ
     ө૾ΛՃ޻͢Δ
84. ϛϥςΟϒ͔Βͷ௨஌͸಺༰ΛӅ͢ඞཁ͸ͳ͍
    ΞΠίϯͷൺֱʹΑͬͯϛϥςΟϒ͔Βͷ௨஌͔ΛͲ͏͔ௐ΂Δ
85. ΞΠίϯྖҬͷൺֱ ΞΠίϯྖҬͷ୳ࡧ
    ΞΠίϯը૾ͷൺֱ
86. ϓογϡ௨஌ͷۣܗ͸෼͔͍ͬͯΔͷͰେମͷ৔ॴ͸෼͔Δ
    ఈͷਪఆͱಉ͡Α͏ʹɺࠨଆͱ্Լ͔ΒΞΠίϯͷڥ໨Λ୳͢
87. ΞΠίϯྖҬͷൺֱ ΞΠίϯྖҬͷ୳ࡧ
    ΞΠίϯը૾ͷൺֱ
88. .JSSBUJW 􀈕 "QQ
    (SPVQT 􀅈 #SPBEDBTU
    6QMPBE
    &YUFOTJPO ΞΠίϯը૾ "QQ
    (SPVQT
    Λհͯ͠ɺ࠷৽ͷΞϓϦΞΠίϯΛڞ༗͢Δ
89. ݕग़ͨ͠ΞΠίϯը૾ͷҐஔ͸
    dQY
    ͣΕͨΓ
    എܠ৭ͷӨڹ΋ड͚ΔͷͰɺͦͷ··ͷεέʔϧͰ׬શҰக͸೉͍͠
90. ɾը૾Λ੾Γൈ͖ɺ͋Β͔͡ΊܾΊͨେ͖͞ Y ʹॖখ͢Δ
    ɾϐΫηϧຖʹൺֱΛͯ͠ɺҰக౓Λܭࢉ͢Δ ΞϓϦΞΠίϯ ௨஌
    .JSSBUJW ௨஌
    λΠϚʔ
91. ΞϓϦΞΠίϯ ௨஌
    .JSSBUJW ௨஌
    λΠϚʔ ΞΠίϯͷൺֱ
    
    
    ʶ
    
    <NT>
    J1IPOF1SP
92. ϓογϡ௨஌΅͔࣮͠ݱ΁ͷεςοϓ  ϓογϡ௨஌ྖҬΛݕग़͢Δ
     ΞΠίϯྖҬΛൺֱ͢Δ
     ө૾ΛՃ޻͢Δ
93. ੩ࢭըͷൺֱ
94. L$71JYFM'PSNBU5ZQF@:Q$C$S#J1MBOBS'VMM3BOHF
    ͸
    ً౓ : ɾ৭ࠩ $C$S ͷͭͷฏ໘͔Βߏ੒͞Ε͍ͯΔ ً౓ : ฏ໘ ৭ࠩ $C$S ฏ໘ ը໘දࣔ
95. // ً౓(Y)ฏ໘ͷઌ಄Λࢦ͢ΞυϨε let address0 = CVPixelBufferGetBaseAddressOfPlane(imageBuffer, 0) // ৭ࠩ(CbCr)ฏ໘ͷઌ಄Λࢦ͢ΞυϨε let address1 = CVPixelBufferGetBaseAddressOfPlane(imageBuffer, 1) ً౓ : ฏ໘ͱ৭ࠩ $C$S ฏ໘͸ผʑʹՃ޻͢Δඞཁ͕͋Δ
96. W*NBHF
    Λ׆༻ͨ͠ө૾ͷՃ޻ ً౓ : ฏ໘ͷՃ޻
    ৭ࠩ $C$S ฏ໘ͷՃ޻
97. ً౓ : ฏ໘͸ϐΫηϧͷً౓ʹରԠ͢Δ
    6*OU
    ͷ஋ d ͕ॱʹฒΜͰ͍Δ 6*OU [… Y0, Y1, Y2, Y3,… Y4, Y5, Y6, Y7,… Y8, Y9, Y10, Y11,… Y12, Y13, Y14, Y15,… …] 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
98. W*NBHF#PY$POWPMWF@1MBOBS
    ͳͲΛ࢖༻͢Δͱ
    ΅͔͠ͷ൒ܘΛࢦఆͨ͠΅͔͠ॲཧΛద༻Ͱ͖Δ ͕ɺॲཧʹ͕͔͔࣌ؒΔʜ😢 ΅͔͠ॲཧΛॎํ޲ͱԣํ޲Ͱ෼ׂͯ͠ߴ଎Խ͢ΔςΫχοΫΛ
    ࢖ͬͨͱͯ͠΋͕͔͔࣌ؒΔ NTऑ
99. W*NBHF.BY@1MBOBS पғͷࢦఆൣғ಺ͷϐΫηϧͷ࠷େ஋Λ࠾༻͢Δ
    W*NBHF#PY$POWPMWF@1MBOBS
    ΑΓஅવૣ͍ ً౓ : ฏ໘ͷΈՃ޻ͨ͠ྫ ˞μʔΫϞʔυͷ৔߹ʹ͸
    W*NBHF.JO@1MBOBS
    Λ࢖༻
100. W*NBHF
     Λ׆༻ͨ͠ө૾ͷՃ޻ ً౓ : ฏ໘ͷՃ޻
     ৭ࠩ $C$S ฏ໘ͷՃ޻
101. W*NBHF#VGGFS'JMM@$C$S ࢦఆൣғΛಛఆͷ
     $C
     $S
     ͷ஋ͰృΓ௵͢ ৭ࠩ $C$S ฏ໘ͷΈՃ޻ͨ͠ྫ
     
     നͰృΓ௵͢ ˞৭ͷՃ޻͸Өڹ͕େ͖͍ͷͰɺ௨஌ͷྖҬ಺ͷΈՃ޻͍ͯ͠Δ
102. ө૾ͷՃ޻
     
     
     ʶ
     
     <NT>
     J1IPOF1SP ً౓ : ฏ໘ɺ৭ࠩ $C$S ฏ໘ͷ྆ํΛՃ޻ͯ͠৘ใΛӅณ͢Δ
103. ۣܗͷݕग़
     
     
     
     
     
     
     
     ΞΠίϯͷൺֱ ө૾ͷՃ޻ 
     ʶ
     
     <NT> 
     ʶ
     
     <NT> 
     ʶ
     
     <NT> 
     ʶ
     
     <NT>
     J1IPOF1SP ݕग़ͱՃ޻
104. ഑৴ऀ ࢹௌऀ
105. ·ͱΊ ɾ:$C$S
     ͷߏ଄Λৄ͘͠஌Γɺॲཧ΍ϝϞϦͷ࡟ݮΛͨ͠
     ɾ"DDFMFSBUF
     ΛՄೳͳݶΓ׆༻͠ɺܭࢉΛߴ଎ʹͨ͠
     ɾݕग़ͱՃ޻ॲཧΛ߹ΘͤͯɺϦΞϧλΠϜͷॲཧʹ଱͑ΔύϑΥ ʔϚϯεΛग़ͤΔ͜ͱΛࣔͨ͠
106. ࠓޙͷల๬ ɾ044ԽΛࢹ໺ʹೖΕͨίʔυͷ੔උ
     ɹɾ͢Ͱʹ௨஌΅͔͠ͷػೳ͸ύοέʔδʹ෼ׂ͍ͯͯ͠ɺΞϓ Ϧຊମͱ͸෼཭͞Ε͍ͯΔ
     ɹɾεΫϦʔϯγϣοτΛ༻͍ͨςετͷॆ࣮
     ɹɹɾIUUQTHJUIVCDPNOBSVKQO'SBNF.JOU
     ɾ࣮ӡ༻্ͷ໰୊ͷ೺ѲͱରԠ
     ɾΫϥΠΞϯτͳΒͰ͸ͷॲཧͷݕ౼
107. ͋Γ͕ͱ͏͍͟͝·ͨ͠ 🌟 🌟