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swiftphasset

phasset subtypes rawValue meaning swift

I'm trying to detect the subtypes of a PHAsset.

asset.subtypes.rawvalue -> UInt

I found the meaning of subtypes .video (rawValue: 0) and photoLive (rawValue: 8) but I have livePhoto with HDR option and the subtypes rawavlue is 10 and I don't find the meaning of the value. Someone has all rawValue meaning of PHAsset subtypes? Thanks

Solution

  • According to the documentation of PHAssetMediaSubtype:

    Media subtypes are bit mask values, so you can combine them using bitwise operators to test for multiple subtypes.

    The definition helps to:

    typedef enum PHAssetMediaSubtype : NSUInteger {
    PHAssetMediaSubtypeNone = 0,
    PHAssetMediaSubtypePhotoPanorama = (1UL << 0),
    PHAssetMediaSubtypePhotoHDR = (1UL << 1),
    PHAssetMediaSubtypePhotoScreenshot = (1UL << 2),
    PHAssetMediaSubtypePhotoLive = (1UL << 3),
    PHAssetMediaSubtypePhotoDepthEffect = (1UL << 4),
    PHAssetMediaSubtypeVideoStreamed = (1UL << 16),
    PHAssetMediaSubtypeVideoHighFrameRate = (1UL << 17),
    PHAssetMediaSubtypeVideoTimelapse = (1UL << 18)
} PHAssetMediaSubtype;

    So, if subtype is 10, then 10 being 8+2 (which the unique possible "sub-values"), it's whatever is the value 8 (.photoLive) and whatever is the value 2 (.HDR).