more stuff for the recorder

apple sample code my goat
2026-03-11 05:19:14 +00:00 · 2026-01-01 21:42:15 +00:00
parent 6062a8b88a
commit 018a589c5a
4 changed files with 89 additions and 69 deletions
--- a/CaptureEngine.swift
+++ b/CaptureEngine.swift
@@ -22,10 +22,47 @@ struct CapturedFrame {

 class CaptureEngine: NSObject {
 	private var stream: SCStream?
-	var streamOutput: StreamDelegate?
+	var streamOutput: StreamHandler?
+	let videoSampleBufferQueue = DispatchQueue(label: "videoSampleBufferQueue")
+	let audioSampleBufferQueue = DispatchQueue(label: "audioSampleBufferQueue")
+	let micSampleBufferQueue = DispatchQueue(label: "micSampleBufferQueue")
+	
+	private var continuation: AsyncThrowingStream<CapturedFrame, Error>.Continuation?
+	
 	func startCapture(config: SCStreamConfiguration, filter: SCContentFilter) -> AsyncThrowingStream<CapturedFrame, Error> {
 		AsyncThrowingStream<CapturedFrame, Error> { continuation in
-//			let streamOutput = SCStreamOutput
+			let streamOutput = StreamHandler(continuation: continuation)
+			self.streamOutput = streamOutput
+			streamOutput.frameBufferHandler = { continuation.yield($0) }
+			streamOutput.pcmBufferHandler = { print($0) }
+			
+			do {
+				stream = SCStream(filter: filter, configuration: config, delegate: streamOutput)
+				
+				try stream?.addStreamOutput(streamOutput, type: .screen, sampleHandlerQueue: videoSampleBufferQueue)
+				try stream?.addStreamOutput(streamOutput, type: .audio, sampleHandlerQueue: audioSampleBufferQueue)
+				try stream?.addStreamOutput(streamOutput, type: .microphone, sampleHandlerQueue: videoSampleBufferQueue)
+			} catch {
+				continuation.finish(throwing: error)
+			}
+		}
+	}
+	
+	func stopCapture() async {
+		do {
+			try await stream?.stopCapture()
+			continuation?.finish()
+		} catch {
+			continuation?.finish(throwing: error)
+		}
+	}
+	
+	func update(config: SCStreamConfiguration, filter: SCContentFilter) async {
+		do {
+			try await stream?.updateConfiguration(config)
+			try await stream?.updateContentFilter(filter)
+		} catch {
+			print(error)
 		}
 	}
 }
@@ -45,16 +82,16 @@ class StreamHandler: NSObject, SCStreamOutput, SCStreamDelegate {
 		
 		switch type {
 		case .screen:
-//			guard let frame =
+			guard let frame = createFrame(for: sampleBuffer) else { return }
+			frameBufferHandler?(frame)
 		case .audio:
-			<#code#>
+			handleAudio(for: sampleBuffer)
 		case .microphone:
-			<#code#>
+			print("idk what to do with mic buffers")
 		}
 	}
 	
 	func createFrame(for sampleBuffer: CMSampleBuffer) -> CapturedFrame? {
-		
 		guard let attachmentsArr = CMSampleBufferGetSampleAttachmentsArray(
 			sampleBuffer,
 			createIfNecessary: false
--- a/Scream.xcodeproj/project.pbxproj
+++ b/Scream.xcodeproj/project.pbxproj
@@ -14,7 +14,6 @@
 		A98E8BF92F05B2A5006D4458 /* ScreamUITests.swift in Sources */ = {isa = PBXBuildFile; fileRef = A98E8BF62F05B2A5006D4458 /* ScreamUITests.swift */; };
 		A98E8BFA2F05B2A5006D4458 /* ScreamUITestsLaunchTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = A98E8BF72F05B2A5006D4458 /* ScreamUITestsLaunchTests.swift */; };
 		A98E8BFD2F05D28D006D4458 /* ScreenRecorder.swift in Sources */ = {isa = PBXBuildFile; fileRef = A98E8BFC2F05D28D006D4458 /* ScreenRecorder.swift */; };
-		A98E8C012F06F496006D4458 /* StreamDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = A98E8C002F06F496006D4458 /* StreamDelegate.swift */; };
 		A9D7225F2F070FE600050BB0 /* CaptureEngine.swift in Sources */ = {isa = PBXBuildFile; fileRef = A9D7225E2F070FE600050BB0 /* CaptureEngine.swift */; };
 /* End PBXBuildFile section */

@@ -47,7 +46,6 @@
 		A98E8BF72F05B2A5006D4458 /* ScreamUITestsLaunchTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ScreamUITestsLaunchTests.swift; sourceTree = "<group>"; };
 		A98E8BFB2F05C7B6006D4458 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist; path = Info.plist; sourceTree = "<group>"; };
 		A98E8BFC2F05D28D006D4458 /* ScreenRecorder.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ScreenRecorder.swift; sourceTree = "<group>"; };
-		A98E8C002F06F496006D4458 /* StreamDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StreamDelegate.swift; sourceTree = "<group>"; };
 		A9D7225E2F070FE600050BB0 /* CaptureEngine.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CaptureEngine.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */

@@ -105,7 +103,6 @@
 				A98E8BEC2F05B2A0006D4458 /* Assets.xcassets */,
 				A98E8BEE2F05B2A0006D4458 /* MainMenu.xib */,
 				A98E8BFC2F05D28D006D4458 /* ScreenRecorder.swift */,
-				A98E8C002F06F496006D4458 /* StreamDelegate.swift */,
 			);
 			path = Scream;
 			sourceTree = "<group>";
@@ -266,7 +263,6 @@
 			files = (
 				A98E8BF02F05B2A0006D4458 /* AppDelegate.swift in Sources */,
 				A9D7225F2F070FE600050BB0 /* CaptureEngine.swift in Sources */,
-				A98E8C012F06F496006D4458 /* StreamDelegate.swift in Sources */,
 				A98E8BFD2F05D28D006D4458 /* ScreenRecorder.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
--- a/Scream/ScreenRecorder.swift
+++ b/Scream/ScreenRecorder.swift
@@ -11,15 +11,37 @@ import ScreenCaptureKit
 class ScreenRecorder: NSObject {
 	var isRunning: Bool = false
 	var isAppExluded: Bool = false
-	var isAudioEnabled: Bool = true
-	var filter: SCContentFilter?
-	var streamConfig = SCStreamConfiguration()
-	var stream: SCStream?
-	var streamDelegate = StreamDelegate()
-	var streamOutput = StreamOutputDelegate()
+	var isAudioEnabled: Bool = false
 	
-	let videoSampleBufferQueue = DispatchQueue(label: "videoSampleBufferQueue")
-	let audioSampleBufferQueue = DispatchQueue(label: "audioSampleBufferQueue")
+	var filter: SCContentFilter?
+//		var filter: SCContentFilter
+//		
+//		var excludedApps = [SCRunningApplication]()
+//		//if users exclude Scream from the screen share
+//		//exclude by matching bundleid
+////		if isAppExluded {
+////			excludedApps = availableContent.applications.filter { app in
+////				Bundle.main.bundleIdentifier == app.bundleIdentifier
+////			}
+////		}
+//		filter = SCContentFilter(display: availableContent.displays.first!, excludingApplications: excludedApps, exceptingWindows: [])
+//	}
+	
+	var streamConfig: SCStreamConfiguration {
+		var streamConfig = SCStreamConfiguration()
+		//TODO: hdr
+		streamConfig.capturesAudio = isAudioEnabled
+		streamConfig.excludesCurrentProcessAudio = false
+//		streamConfig.captureMicrophone = true
+		
+		streamConfig.width = Int(NSScreen.main?.frame.width ?? 100)
+		streamConfig.height = Int(NSScreen.main?.frame.height ?? 100)
+		
+		streamConfig.minimumFrameInterval = CMTime(value: 1, timescale: 20)
+		streamConfig.queueDepth = 5
+		return streamConfig
+	}
+	let captureEngine = CaptureEngine()
 	
 	var canRecord: Bool {
 		true
@@ -35,7 +57,6 @@ class ScreenRecorder: NSObject {
 			print(error.localizedDescription)
 			return
 		}
-		
 		var excludedApps = [SCRunningApplication]()
 		//if users exclude Scream from the screen share
 		//exclude by matching bundleid
@@ -46,25 +67,22 @@ class ScreenRecorder: NSObject {
 		}
 		filter = SCContentFilter(display: availableContent.displays.first!, excludingApplications: excludedApps, exceptingWindows: [])
 		
-		//TODO: hdr
+		do {
+			isRunning = true
+			for try await frame in captureEngine.startCapture(config: streamConfig, filter: filter!) {
+				print(frame)
+			}
+		} catch {
+			isRunning = false
+			print(error.localizedDescription)
+		}
+		//TODO: update the config using stream.updateConfiguration or .updateContentFilter
+	}
 	
-		streamConfig.capturesAudio = isAudioEnabled
-		streamConfig.excludesCurrentProcessAudio = true
-//		streamConfig.captureMicrophone = true
-		
-		streamConfig.width = Int(NSScreen.main?.frame.width ?? 100)
-		streamConfig.height = Int(NSScreen.main?.frame.height ?? 100)
-		
-		streamConfig.minimumFrameInterval = CMTime(value: 1, timescale: 20)
-		streamConfig.queueDepth = 5
-		
-		stream = SCStream(filter: filter!, configuration: streamConfig, delegate: streamDelegate)
-		
-		try! stream?.addStreamOutput(streamOutput, type: .screen, sampleHandlerQueue: videoSampleBufferQueue)
-		try! stream?.addStreamOutput(streamOutput, type: .audio, sampleHandlerQueue: audioSampleBufferQueue)
-//		try! stream?.addStreamOutput(streamOutput, type: .microphone, sampleHandlerQueue: videoSampleBufferQueue)
-		
-		//update the config using stream.updateConfiguration or .updateContentFilter
+	func stop() async {
+		guard isRunning else { return }
+		await captureEngine.stopCapture()
+		isRunning = false
 	}
 }

--- a/Scream/StreamDelegate.swift
+++ b/Scream/StreamDelegate.swift
@@ -1,31 +0,0 @@
-//
-//  StreamDelegate.swift
-//  Scream
-//
-//  Created by neon443 on 01/01/2026.
-//
-
-import Foundation
-import ScreenCaptureKit
-
-class StreamDelegate: NSObject, SCStreamDelegate {
-	func outputVideoEffectDidStart(for stream: SCStream) {
-		print("presenter overlay started")
-	}
-	
-	func outputVideoEffectDidStop(for stream: SCStream) {
-		print("presenter overlay stopped")
-	}
-	
-	func streamDidBecomeActive(_ stream: SCStream) {
-		print("stream became Active")
-	}
-	
-	func streamDidBecomeInactive(_ stream: SCStream) {
-		print("stream became Inactive")
-	}
-	
-	func stream(_ stream: SCStream, didStopWithError error: any Error) {
-		print(error.localizedDescription)
-	}
-}