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Accelerate.vDSPとSwift Chartsでぶち上がろう!/サイボウズモバイル ...
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Kyome (Takuto Nakamura)
December 20, 2023
Programming
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Accelerate.vDSPとSwift Chartsでぶち上がろう!/サイボウズモバイル Meetup 2023.04.20
Kyome (Takuto Nakamura)
December 20, 2023
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Transcript
Kyome αΠϘζϞόΠϧ Meetup in େࡕ 2023/06/16 Accelerate.vDSPͱSwift ChartsͰͿ্͕ͪΖ͏ʂ Mobile Meetup
#cybozu_mobile ࣗݾհ IUUQTLZPNFJP ,ZPNF ,ZPNFTVLF CybozuͰkintoneϞόΠϧͷiOSΛ୲ ۀޮԽOSSϥΠϒϥϦͷ։ൃӡ༻ʹੵۃత झຯͰmacOS͚ͷϢʔςΟϦςΟΞϓϦ։ൃ
#cybozu_mobile Audio Visualizer 🎵
#cybozu_mobile Audio Visualizer 🎵 ԻΛՄࢹԽ͢Δͭ Χοί͍͍ʂʂ
#cybozu_mobile Audio Visualizer 🎵 ԻΛՄࢹԽ͢Δͭ Χοί͍͍ʂʂ ࡞ͬͯΈΑ͏🔨
#cybozu_mobile ࣮ͷํ
#cybozu_mobile 1. ϛϡʔδοΫΞϓϦ͔ΒۂͷϦετΛऔಘ 2. ۂͷ࠶ੜ࣌ʹԻݯσʔλΛऔಘͯ͠దٓՃ 3. ԻݯσʔλΛجʹ SwiftUI Ͱ Audio
Visualizer Λදࣔ ࣮ํ
#cybozu_mobile MediaPlayer Framework Λ͏ MPMediaLibrary.requestAuthorization() ͰϛϡʔδοΫΞϓϦͷ ϥΠϒϥϦͷΞΫηεΛཁٻͰ͖Δ Info.plist ʹ NSAppleMusicUsageDescription
Λهड़͢Δඞཁ͕͋Δ MPMediaQuery.songs().items ͰۂҰཡΛऔಘͰ͖Δ λΠτϧɺΞʔτϫʔΫɺԻݯϑΝΠϧͷύεͳͲ͕ೖखՄೳ ࣮ํɿϛϡʔδοΫΞϓϦ͔ΒۂͷϦετΛऔಘ
#cybozu_mobile ࣮ํɿۂͷ࠶ੜ࣌ʹԻݯσʔλΛऔಘͯ͠దٓՃ ۂ AVFoundation Framework ͷ AVAudioPlayerNode() Ͱ࠶ੜ͢Δ Իݯσʔλ AVAudioNode.installTap(onBus:
bu ff erSize: format: ) Ͱ AVAudioPCMBu ff er ΛऔಘͰ͖Δ Accelerate Framework ͷ vDSP Λར༻ͯ͠ৼ෯εϖΫτϧ RMSʢԻͷฏۉΤωϧΪʔʣΛࢉग़͢Δ ৼ෯εϖΫτϧΛಘΔʹ FFTʢߴϑʔϦΤมʣΛߦ͏
#cybozu_mobile ࣮ํɿۂͷ࠶ੜ࣌ʹԻݯσʔλΛऔಘͯ͠దٓՃ ۂ AVFoundation Framework ͷ AVAudioPlayerNode() Ͱ࠶ੜ͢Δ Իݯσʔλ AVAudioNode.installTap(onBus:
bu ff erSize: format: ) Ͱ AVAudioPCMBu ff er ΛऔಘͰ͖Δ Accelerate Framework ͷ vDSP Λར༻ͯ͠ৼ෯εϖΫτϧ RMSʢԻͷฏۉΤωϧΪʔʣΛࢉग़͢Δ ৼ෯εϖΫτϧΛಘΔʹ FFTʢߴϑʔϦΤมʣΛߦ͏ ֶྗ͕ඞཁ 📐
#cybozu_mobile ࣮ํɿԻݯσʔλΛجʹ SwiftUI Ͱ Audio Visualizer Λදࣔ iOS 16͔Β͑Δ Charts
Framework Λ׆༻͢Δ ંΕઢάϥϑɺάϥϑɺࢄਤΛར༻͢Δ ࢄਤͰɺChartSymbolShape ʹ४ڌͨࣗ͠༝ͳਤܗΛࢦఆͨ͠࠲ඪʹ ϓϩοτͰ͖Δʢˡͱʹ͔͘ڧྗɻແݶͷՄೳੑΛײ͡Δʣ Charts ొҎલ Path Canvas (GraphicsContext) Λར༻ͯ͠ άϥϑΛࣗલ࣮͠ͳ͍ͱ͍͚ͳ͔ͬͨͷͰศརʹͳͬͨ
#cybozu_mobile σϞ
#cybozu_mobile σϞ Source: https://github.com/Kyome22/ShootingStar.git
#cybozu_mobile গ͠ղઆ LineMark Λ༻͍ͨγϯϓϧͳંΕઢάϥϑ .foregroundStyle() Ͱ .linearGradient() Λࢦఆ ͢Δͱάϥσʔγϣϯ͖ͷંΕઢάϥϑ ʹͳͬͯΧοί͍͍
Source: https://github.com/Kyome22/ShootingStar.git
#cybozu_mobile গ͠ղઆ BarMark Λ༻͍ͨάϥϑ BarMark ͷ stacking Λ .center ʹ͢Δͱ
ઢରশͳάϥϑΛඳ͚Δ Source: https://github.com/Kyome22/ShootingStar.git
#cybozu_mobile গ͠ղઆ άϥϑʹݟ͑Δ͔͠Εͳ͍͕ɺ ͜Εࢄਤ Prot ͱ PointMark Λ༻ͯ͠ঢ়ʹํܗ ͷجΛஔ͢Δ ֤ํܗ֯ͱ͞ΛมߋͰ͖ΔΑ͏ʹ
͓ͯ͘͠ தԝͷԁRMSʹ߹Θͤͯ scaleE ff ect Ͱ େ͖͞ΛมԽ͍ͤͯ͞ΔʢάϥϑͰͳ͍ʣ Source: https://github.com/Kyome22/ShootingStar.git
#cybozu_mobile Thank you!