avasset swift
An AVAsset defines the collective properties of the tracks that comprise the asset. You create an AVAsset by initializing it with a local or remote URL pointing to a ... ,An AVPlayerItem stores a reference to an AVAsset object, which represents the media to be played. If you need to access information about the asset before you ...
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 avasset swift 相關參考資料
assetWithURL: - AVAsset | Apple Developer Documentation
Beta Software. This documentation contains preliminary information about an API or technology in development. This information is subject to change, and ... https://developer.apple.com AVAsset - AVFoundation | Apple Developer Documentation
An AVAsset defines the collective properties of the tracks that comprise the asset. You create an AVAsset by initializing it with a local or remote URL pointing to a ... https://developer.apple.com AVPlayerItem - AVFoundation | Apple Developer Documentation
An AVPlayerItem stores a reference to an AVAsset object, which represents the media to be played. If you need to access information about the asset before you ... https://developer.apple.com AVURLAsset - AVFoundation | Apple Developer Documentation
A concrete subclass of AVAsset that's used to initialize an asset from a local or remote URL. SDKs. iOS 4.0+; macOS 10.7+; UIKit for Mac 13.0+Beta; tvOS 9.0+ ... https://developer.apple.com cancelLoading() - AVAsset | Apple Developer Documentation
This method explicitly cancels any pending invocations of the asset's loadValuesAsynchronously(forKeys:completionHandler:) method. This method should only ... https://developer.apple.com Converting URL to AVAsset - Swift - Stack Overflow
Loading an AVAsset is asynchronous operation. You should wait until it will be prepared. The most efficient way to "wait" is using KVO. In your ... https://stackoverflow.com duration - AVAsset | Apple Developer Documentation
If providesPreciseDurationAndTiming is true , the asset's precise duration is returned. If providesPreciseDurationAndTiming is false , a best-available estimate of ... https://developer.apple.com init(url:) - AVAsset | Apple Developer Documentation
Beta Software. This documentation contains preliminary information about an API or technology in development. This information is subject to change, and ... https://developer.apple.com |