PHContentEditingInput does not grant a sandbox extension necessary to read from the AVURLAsset's underlying URL

Originator:stephenpoletto
Number:rdar://18800190 Date Originated:28-Oct-2014 12:40 PM
Status:Open Resolved:
Product:iOS SDK Product Version:8.1
Classification:Other Bug Reproducible:Always
 
Summary:
Calling -[PHAsset requestContentEditingInputWithOptions:completionHandler:] on a video PHAsset will return a PHContentEditingInput with a populated 'avAsset' of type AVURLAsset. Attempting to read from the underlying URL of the AVURLAsset will fail.

Steps to Reproduce:
Sample project: https://www.dropbox.com/s/ko0yv8kzcpmvtir/Sandbox%20Bug.zip?dl=0

1) Open the sample project and run it. It will crash.
2) Toggle the 'useRequestAVAssetAPI' to YES. This demonstrates a workaround whereby holding on to the AVAsset returned from -[PHImageManager requestAVAssetForVideo:options:resultHandler:] enables the application to read from the PHContentEditingInput's underlying AVAsset URL. The sample application will no longer crash.


Expected Results:
Reading from the PHContentEditingInput's underlying AVURLAsset URL should be allowed.

Actual Results:
An application must utilize the workaround provided in order to read from the underlying URL.

Version:
iOS 8.1

Notes:


Configuration:
iPhone 5, 64 GB, AT&T

Attachments:
'Sandbox Bug.zip' was successfully uploaded.

Comments


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