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  • Implementa la captura de fotos en alta resolución

    Captura fotos de superalta resolución en tu app con AVFoundation. Obtén información sobre cuándo usar las tres opciones diferentes para capturar imágenes: RAW, con bracketing de exposición y totalmente procesadas. Aprende a configurar la captura de fotos para imágenes de 24 MP y 48 MP en las cámaras principal, teleobjetivo y ultra gran angular. Además, descubre cómo el procesamiento diferido de fotos mantiene la capacidad de respuesta de tu app a medida que se toman más fotos.

    Capítulos

    • 0:00 - Introduction
    • 0:52 - High-resolution photos
    • 4:07 - Types of captures
    • 5:20 - Configure a capture session
    • 9:41 - Responsive capture best practices

    Recursos

    • Capturing photos in RAW and Apple ProRAW formats
    • AVCam: Building a camera app
      • Video HD
      • Video SD

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  • Buscar este video…
    • 5:26 - Configure the AVCaptureSession

      import AVFoundation
      
      private let session = AVCaptureSession()
      private func configureSession() {
          session.beginConfiguration()
          session.sessionPreset = .photo
      }
    • 6:11 - Configure AVCapturePhotoOutput

      import AVFoundation
      
      private let photoOutput = AVCapturePhotoOutput()
      private let configurePhotoOutput: () -> Void = {
          photoOutput.maxPhotoQualityPrioritization = .quality // or .balanced
      }
    • 6:38 - Add maxPhotoDimensions to AVCapturePhotoOutput

      import AVFoundation
      
      let supportedMaxPhotoDimensions = device?.activeFormat.supportedMaxPhotoDimensions ?? []
      if let largestDimension = supportedMaxPhotoDimensions.max(by: { lhs, rhs in
          Int(lhs.width) * Int(lhs.height) < Int(rhs.width) * Int(rhs.height)
      } ) {
          photoOutput?.maxPhotoDimensions = largestDimension
      }
      
      session?.commitConfiguration()
      session?.startRunning()
    • 7:21 - Update AVCapturePhotoSettings

      import AVFoundation
      
      let settings = AVCapturePhotoSettings()
      settings.maxPhotoDimensions = dimension.cmVideoDimensionsValue
      settings.photoQualityPrioritization = .quality
      
      var delegate: AVCapturePhotoCaptureDelegate?
      
      // Configure photo request delegate
      
      if let delegate {
       photoOutput?.capturePhoto(with: settings, delegate: delegate)
      }
    • 8:59 - Prepare resources for the capture

      import AVFoundation
      
      let prepareSettings = AVCapturePhotoSettings()
      prepareSettings.maxPhotoDimensions = photoOutput.maxPhotoDimensions
      prepareSettings.photoQualityPrioritization = .quality
      
      photoOutput.setPreparedPhotoSettingsArray([prepareSettings]) { prepared, error in
        if let error = error {
          print("Failed to prepare: \(error)")
            return
        }
        print("Pipeline prepared: \(prepared)")
      }
      
      // Later, when ready to capture — create NEW settings
      let captureSettings = AVCapturePhotoSettings()
      captureSettings.maxPhotoDimensions = photoOutput.maxPhotoDimensions
      captureSettings.photoQualityPrioritization = quality
      photoOutput.capturePhoto(with: captureSettings, delegate: self)
    • 0:00 - Introduction
    • The tradeoffs high-resolution photo capture requires — particularly between processing time and image quality — and what the session covers: photo types, configuring and capturing them, and keeping your app responsive.

    • 0:52 - High-resolution photos
    • Explore the different photo resolutions available across iPhone cameras, including 12MP, 24MP, and 48MP, and how the photonic engine balances light and detail.

    • 4:07 - Types of captures
    • Learn about the four types of high resolution captures you can request: fully processed photos, exposure brackets, Bayer RAW, and Apple ProRAW.

    • 5:20 - Configure a capture session
    • An overview of AVCaptureSession setup for high resolution photos. Learn how to select quality prioritization, configure maximum photo dimensions, and preallocate resources.

    • 9:41 - Responsive capture best practices
    • Keep your app fast and responsive by implementing overlapping captures, deferred photo processing, and fast capture prioritization to minimize shot-to-shot delay.

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