Note that the highest data rate formats (such as 4K60) require using the HEVC codec for recording. To capture video at a higher frame rate in 1080p60 or 4K60 format, you must configure capture by choosing an appropriate AVCaptureDeviceFormat option for the AVCaptureDevice activeFormat property. For 4K UHD resolution at 30 fps, use the AVCaptureSessionPreset3840x2160 preset. If you configure capture using the AVCaptureSessionPresetHigh preset, the captured video format is 1080p30 even on devices which support higher resolutions and frame rates. To access the maximum still image resolution, see High Resolution Still Images During Video Capture. To access lower-resolution formats, examine the AVCaptureDevice formats array and choose a format to set as the activeFormat for the device.įor some devices, the front-facing camera does not output its maximum resolution for still images by default. (For details on the choice between session presets and capture formats, see WWDC 2013: What’s New in Camera Capture.) Maximum Still Image Resolutionīy default, choosing the AVCaptureSessionPresetPhoto preset for the AVCaptureSession sessionPreset property enables still image capture at the highest possible resolution for a device camera. To use specialized features, iterate through the formats array and examine the properties of each AVCaptureDeviceFormat object within to find the one whose features you want to use then, set the device’s activeFormat property to that format.
APPLE IMAGE CAPTURE COMPATIBLE CAMERA FULL
The formats property of each AVCaptureDevice object provides the full list of capture options for that device. However, some specialized camera features-such as ultra high definition video, high frame rate, and the ability to capture high resolution stills during video capture-require an alternate approach. Typically, you can set up a capture session using a session preset to quickly gain access to a common configuration of camera features, as described in Use a Capture Session to Coordinate Data Flow. These subsections provide further details on the features listed in Table 4-1 above. High Resolution Still Images During Video Capture (front camera) High Resolution Still Images During Video Capture (back camera) Notable Video Resolutions and Frame Rates (back camera) Items in italic: see High Resolution Still Images During Video Capture
Maximum Still Image Resolution (front camera) Maximum Still Image Resolution (back camera)
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