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ϏσΦ௨࿩ΞϓϦͷ͓࿩ Cocoaษڧձؔ੢ #72 2017/04/22 େౡ ޫو@taminif

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ࣗݾ঺հ • ΢ΣϒϦΦגࣜձࣾWEBΤϯδχΞ • ΞϓϦΤϯδχΞ  ʢࣗশʣ • ࠓ೔ͷͨΊʹ  ͍͖ͭͬ͞൅੾͖ͬͯ·ͨ͠ʂ

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Weblio ͝ଘ஌Ͱ͔͢ʁ

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http://ejje.weblio.jp/content/Cocoa?dictCode=WEJTY

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ΦϯϥΠϯࣙॻΛఏڙ͢Δ WebαʔϏε

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࣮͸ࣙॻҎ֎ʹ΋ ͜ΜͳαʔϏεΛ΍͍ͬͯ ·͢

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https://eikaiwa.weblio.jp/

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ΦϯϥΠϯӳձ࿩αʔϏε

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Skypeӳձ࿩ͱݴ͑͹ ฉ͍ͨ͜ͱ͋Δํ΋ ଟ͍ͷͰ͸ͳ͍Ͱ͠ΐ͏͔

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ͦΜͳWeblioӳձ࿩Ͱ͕͢

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஫໨ʂ

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3݄1೔ΑΓɺWebRTCΛ ࢖༻ͨ͠Ϩοεϯʹ Ҡߦ͠·ͨ͠ɻ

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WebRTCͱ͸ • W3C͕ఏএ͢ΔP2PϦΞϧλΠϜίϛϡχέʔ γϣϯΛ࣮ݱ͢Δٕज़ • ϓϥάΠϯͳ͠Ͱϒϥ΢βؒͷ΍ΓͱΓ͕Մೳ • ຊ೔͸࢓૊Έʹ͍ͭͯ͸ৄ͘͠΍Γ·ͤΜʂ ->αʔό͕ඞཁͰ೉ͦ͠͏ʹݟ͑·͕͢  ͜ΕΒΛఏڙ͢ΔαʔϏε͕͋Γ·͢ʂ

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WebRTCΛ؆୯ʹ࣮ݱ͢Δ αʔϏε ొ࿥͢Ε͹ແྉͰ࢖༻Մೳʂ https://nttcom.github.io/skyway/

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֤ϒϥ΢βରԠঢ়گʢPCʣ • Google Chrome • Firefox • Opera • Edge(Creators UpdateͰରԠ༧ఆ) • Safari(ରԠத) ※࠷৽όʔδϣϯΛର৅

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֤ϒϥ΢βରԠঢ়گʢεϚϗʣ • Android  -> ChromeରԠࡁΈʢͦͷଞະݕূʣ • iOS  -> ඇରԠɾɾɾ

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iPhone΍iPadͰ͸ Weblioӳձ࿩͕࢖͑ͳ͍

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࿩͸มΘͬͯɺ Weblioӳձ࿩͸ֶߍ΍ اۀʹ΋ఏڙ͍ͯ͠·͢

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·ͨɺֶߍͷதʹ͸ iPadΛतۀʹ࢖༻͢Δॴ΋ ૿͖͑ͯ·ͨ͠

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ʮWeblioӳձ࿩ΛiPadͰ ࢖༻Ͱ͖ͳ͍ʁʯ

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͔͜͜Β͕ຊ୊Ͱ͢

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ʮiOSΞϓϦʹWebRTCΛ ࣮૷ͨ͠࿩ʯ

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https://itunes.apple.com/jp/app/weblio๏ਓӳձ࿩/id1215209006?mt=8

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ϦϦʔε͠·ͨ͠

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SkyWayΛ࢖ͬͯ ϏσΦΞϓϦΛ࣮૷ͨ͠ ஌ݟΛڞ༗͠·͢

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1. ಋೖฤ

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ωΠςΟϒΞϓϦ༻ͷ SDKΛ௥Ճ͠·͢

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ެ͔ࣜΒϥΠϒϥϦ͕഑෍ https://webrtc.org/native-code/ios/

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SkyWayͰ΋ϥΠϒϥϦ͕഑෍ ʢϥοϐϯάͨ͠ϥΠϒϥϦʣ https://nttcom.github.io/skyway/documentation.html

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SkyWay iOS SDK • αΠτ͔Βμ΢ϯϩʔυ  or GithubͰclone  or CocoaPodsͰΠϯετʔϧ • Objective-CͰॻ͔Ε͍ͯΔͷͰ  Bridging-HeaderΛ௥Ճͯ͠ಡΈࠐΈ

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ͦͷଞɺ͍͔ͭ͘ frameworkΛಡΈࠐΉඞཁ ͕͋Γ·ׂ͕͢Ѫ ʢެࣜͷυΩϡϝϯτࢀরʣ

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2. νϟωϧฤ

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ೋͭͷνϟωϧ • ϝσΟΞνϟωϧ  ө૾΍Ի੠ͷStreamΛ΍ΓͱΓ͢Δνϟωϧ • σʔλνϟωϧ  ςΩετ΍όΠφϦ౳σʔλΛ΍ΓͱΓ͢Δ νϟωϧ

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SkyWayͰ͸ mediaConnectionΫϥεͱ dataConnectionΫϥε

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Connectionʹ Stream΍σʔλΛ౉ͯ͠ ΍ΓͱΓ͠·͢

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ϏσΦ௨࿩ʹ͸ϝσΟΞνϟ ωϧΛ࢖༻͠·͢

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mediaConnection // ૬खͷϝσΟΞνϟωϧΛड͚औΔCALLBACKΛઃఆ peer?.on(SKWPeerEventEnum.PEER_EVENT_CALL, callback: {(obj) -> Void in let mediaConnection:SKWMediaConnection = obj as! SKWMediaConnection mediaConnection.answer(self.localMediaStream) }) ※্هҎ֎ʹ΋peer.callWithId(callId, localStream)Ͱ૬खʹͭͳ͙͜ͱ͕Ͱ͖Δ

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mediaConnectionʹ localStreamΛ౉͠ remoteStreamΛ ड͚औΓ·͢

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localStreamΛऔಘ // peerΠχγϟϥΠζ SKWNavigator.initialize(peer) // constraintsઃఆ let constraints:SKWMediaConstraints = SKWMediaConstraints.init() // ΧϝϥϞʔυઃఆ constraints.cameraMode = .CAMERA_MODE_ADJUSTABLE // ΧϝϥͷҐஔઃఆ constraints.cameraPosition = .CAMERA_POSITION_FRONT // localMediaStreamऔಘ localMediaStream = SKWNavigator.getUserMedia(constraints)

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remoteStreamΛऔಘ // MediaConnectionͷCALLBACKΛઃఆ mediaConnection.on(SKWMediaConnectionEventEnum.MEDIACONNECTION_EVENT _STREAM, callback: {(obj) -> Void in self.remoteMediaStream = obj as? SKWMediaStream DispatchQueue.global(qos: .default).async { let remoteVideo:SKWVideo = self.view.viewWithTag(1002) as! SKWVideo remoteVideo.isUserInteractionEnabled = true remoteVideo.addSrc(self.remoteMediaStream, track: 0) } })

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΍͓ͬͯ͘͜ͱ

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ΧϝϥͱϚΠΫͷڐՄΛऔΔ • Info.plistʹઆ໌จΛ༻ҙ͢Δ • ༻ҙͨ͠จ͕σόΠεڐՄऔಘ࣌ʹදࣔ͞ΕΔ • NSCameraUsageDescription • NSMicrophoneUsageDescription • ΧϝϥͱϚΠΫͷڐՄΛऔΔ • AVCaptureDevice • Χϝϥ͕࢖༻ෆՄͩͱgetUserMedia͕ࣦഊ͢Δ͕ɺ  ϚΠΫ͕࢖༻ෆՄͰ΋getUserMedia͸ࣦഊ͠ͳ͍ • ϚΠΫσόΠεͷ੾Γସ͑͸Ͱ͖ͳ͍

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σόΠεڐՄऔಘ let cameraStatus = AVCaptureDevice.authorizationStatus(forMediaType: AVMediaTypeVideo) switch (cameraStatus) { case .authorized: // ࢖༻Մೳ case .restricted, .notDetermined: // ࢖༻ڐՄ AVCaptureDevice.requestAccess(forMediaType: AVMediaTypeVideo, completionHandler: {(granted: Bool) in // OK or CancelͰgrantedͷBool͕มΘΔ }) break case .denied: // ࢖༻ෆՄ break }

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3. ϋϚͬͨ͜ͱฤ

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ϋϚͬͨ͜ͱ A. localMediaStream͕औΕͳ͍ B. remoteMediaStream͕өΒͳ͍ C. ϑϨʔϜϨʔτ͕มߋͰ͖ͳ͍

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A. localMediaStream͕औΕͳ͍

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localStream͕औΕͳ͍ // peerΠχγϟϥΠζ SKWNavigator.initialize(peer) // constraintsઃఆ let constraints:SKWMediaConstraints = SKWMediaConstraints.init() // ΧϝϥϞʔυઃఆ constraints.cameraMode = .CAMERA_MODE_ADJUSTABLE // ΧϝϥͷҐஔઃఆ constraints.cameraPosition = .CAMERA_POSITION_FRONT // localMediaStreamऔಘ localMediaStream = SKWNavigator.getUserMedia(constraints) 4USFBNܗࣜͰऔಘ͸Ͱ͖Δ͚Ͳ ࣗ෼ͷө૾͕දࣔ͞Εͳ͔ͬͨ ౰ॳ͜ͷ෦෼ͷهड़͕ൈ͚͍ͯͨ

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B. remoteMediaStream͕өΒͳ͍

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remoteMediaStream͕өΒͳ͍ // MediaConnectionͷCALLBACKΛઃఆ mediaConnection.on(SKWMediaConnectionEventEnum.MEDIACONNECTION_EVENT _STREAM, callback: {(obj) -> Void in self.remoteMediaStream = obj as? SKWMediaStream DispatchQueue.global(qos: .default).async { let remoteVideo:SKWVideo = self.view.viewWithTag(1002) as! SKWVideo remoteVideo.isUserInteractionEnabled = true remoteVideo.addSrc(self.remoteMediaStream, track: 0) } }) ૬ख͔ΒૹΒΕ͍ͯΔ͸ͣͷө ૾͕өΒͳ͔ͬͨ

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C. ϑϨʔϜϨʔτ͕มߋͰ͖ͳ͍

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ܦҢ • ϏσΦ௨࿩Λߦ͏ʹ͸ɺܭࢉ্ԼهͷଳҬ͕ ඞཁʢ1ΫϥΠΞϯτʣ  Ի੠ɿ500Kbps  ө૾ɿ2Mbps • ʢಛʹʣֶߍͩͱڞ༗ωοτϫʔΫͷͨΊɺ  1ΫϥεͰडߨ͢Δͱ஗Ԇ͕ଟ͘ൃੜͨ͠

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ʮ࢖༻ଳҬΛݮΒͤͳ͍ʁʯ

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ௐࠪ͢Δ΋ SkyWayͷυΩϡϝϯτʹ ͸هࡌͳ͠ɾɾɾ

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͔͠͠ʂ

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SKMediaConstraintsͷ ϓϩύςΟʹ maxFrameRate͕ ͋Γ·ͨ͠ʂ

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࢖͑·ͤΜͰͨ͠

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ެࣜͰඇରԠͱճ౴͞Ε͍ͯ·ͨ͠ https://support.skyway.io/hc/ja/community/posts/115000352647-ϑϨʔϜϨʔτͷมߋ͕൓ө͞Ε·ͤΜ

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ϝδϟʔόʔδϣϯͰ ରԠ͞ΕΔ͜ͱΛ ظ଴͍ͨ͠Ͱ͢ʂ

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·ͱΊ

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·ͱΊ • iOSͰϏσΦ௨࿩ΞϓϦ͸ҙ֎ͱ؆୯ʹ࡞ΕΔ • ҙ֎ͱ͋ͬ͞Γ৹ࠪ΋௨Δ • ϒϥ΢β <-> ΞϓϦؒ΋࢖༻Մೳ • WebRTC͸ଟछଟ༷ͳ༻్͕͋Δʂ