AVAssetImageGenerator fails to generate image for video
Originator: | alex | ||
Number: | rdar://20568768 | Date Originated: | 16/4/2015 |
Status: | Open | Resolved: | |
Product: | iOS SDK | Product Version: | |
Classification: | Reproducible: | Sometimes |
Summary: After writing video files using using AVAssetWriter, sometimes no image can be generated from the resulting video file when using AVAssetImageGenerator. Steps to Reproduce: 1. Open project containing sample video 2. Run sample project 3. Observe error when trying to create a snapshot Expected Results: An image is generated at time = 0. Actual Results: No image is generated and a "Cannot open" error is returned. Version: iOS 8.3 Notes: OS X 10.10.3 doesn't show a snapshot of the video file, either. I assume that it uses the same method to generate. ffmpeg has no problem generating a screenshot at time = 0 by using the following on the command line: `ffmpeg -ss 00:00:00 -i Video.mp4 -f mjpeg screen.png` Configuration: iPhone 6 Attachments: 'AVAssetImageGeneratorBug.zip' was successfully uploaded.
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