NSCoding support for AVComposition
| Originator: | cellsworth | ||
| Number: | rdar://FB7709954 | Date Originated: | 2020/05/21 |
| Status: | Open | Resolved: | |
| Product: | AVFoundation | Product Version: | |
| Classification: | Suggestion | Reproducible: |
It would be useful for AVComposition (and AVVideoComposition) to be able to conform to NSCoding so that it can be persisted for use between app sessions. The best workaround for this currently seems to be to define an identical API on top of AVComposition which conforms to NSCoding, and then have a way to generate an AVComposition off of this identical API. It's a bit cumbersome and requires maintenance as new features of AVComposition are exercised.
Comments
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Response from Apple
We looked into this issue and the problem is that AVAsset doesn’t support NSCoding, so we have no reasonable way to copy the internal asset.