The time range to read from the asset.
- iOS 4.1+
- macOS 10.7+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
The intersection of the value of this property and
CMTimeRangeMake(kCMTimeZero, asset.duration) determines the time range of the asset for reading media data.
The default value is
CMTimeRangeMake(kCMTimeZero, kCMTimePositiveInfinity). You cannot change the value of this property after starting reading.
Cancels any background work and prevents the receiver’s outputs from reading more samples.
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