Mitigate black video thumbnails provided by Android
Description
Android may generate black thumbnails without warning in ThumbnailUtils.createVideoThumbnail
. This commit mitigate this issue by checking if the returned bitmap is empty
Motivation and Context
How Has This Been Tested?
Screenshots / GIFs (if appropriate):
Types of changes
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Bug fix (non-breaking change which fixes an issue) -
New feature (non-breaking change which adds functionality) -
Enhancement (non-breaking change which cleans up / improves existing functionality) -
Breaking change (fix or feature that would cause existing functionality to change)
Checklist
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I have read the CONTRIBUTING section of the README document.