fix: Fix Video Recording delay and improve startRecording() performance (#2192)

* fix: Add more logs

* perf: Init audio AVAssetWriter in parallel

* chore: Log Audio Session activation

* perf: Init Audio Session asynchronously

* chore: Log when category changed

* fix: Revert lazy audio initialization

* Update Podfile.lock

* Pass `sourceFormatHint` to video and audio AVAssetWriter

* fix: Remove `sourceFormatHint` from Video Asset Writer

* Use default options for Audio Asset Writer

* Update Podfile.lock

* Revert "Use default options for Audio Asset Writer"

This reverts commit e575a14c5342ddc7f9db557d5e3915328ed9e798.

* Add time logs

* fix: Don't synchronize audio buffers, they are already in sync

* shouldOptimizeForNetworkUse = false

* fix: Only update `latestTimestamp` once video buffer has been written

* perf: Use `AVAssetWriterInput` instead of `AVAssetWriterInputPixelBufferAdaptor`

* fix: Fix Audio not being synchronized with Video

* Remove logs add comments

* Format

* feat: Set `.videoRecording` AVAudioSession mode

* Refactor `startRecording()` a bit

* Format

* chore: Throw error directly instead of double-checking

package/ios/Extensions/AVCaptureSession+synchronizeBuffer.swift

@@ -0,0 +1,30 @@
+//
+//  AVCaptureSession+synchronizeBuffer.swift
+//  VisionCamera
+//
+//  Created by Marc Rousavy on 22.11.23.
+//  Copyright © 2023 mrousavy. All rights reserved.
+//
+
+import AVFoundation
+import Foundation
+
+extension AVCaptureSession {
+  private var clock: CMClock {
+    if #available(iOS 15.4, *), let synchronizationClock {
+      return synchronizationClock
+    }
+
+    return masterClock ?? CMClockGetHostTimeClock()
+  }
+
+  /**
+   Synchronizes a Buffer received from this [AVCaptureSession] to the timebase of the other given [AVCaptureSession].
+   */
+  func synchronizeBuffer(_ buffer: CMSampleBuffer, toSession to: AVCaptureSession) {
+    let timestamp = CMSampleBufferGetPresentationTimeStamp(buffer)
+    let synchronizedTimestamp = CMSyncConvertTime(timestamp, from: clock, to: to.clock)
+    ReactLogger.log(level: .info, message: "Synchronized Timestamp \(timestamp.seconds) -> \(synchronizedTimestamp.seconds)")
+    CMSampleBufferSetOutputPresentationTimeStamp(buffer, newValue: synchronizedTimestamp)
+  }
+}