Apple Live Photo file format
A live photo has two resources. They are tied together with an asset identifier (a UUID as a string). A JPEG; this must have a metadata entry for kCGImagePropertyMakerAppleDictionary with [17 : assetIdentifier] (17 is the Apple Maker Note Asset Identifier key). A Quicktime MOV encoded with H.264 at the appropriate framerate (12-15fps) and size … Read more