Small repo to show the file size issues with the new HEVC encoder on iOS 11. It writes simultaneously to an H264 and H265 encoded video.
- Run the app on a hardware device running iOS 11.
- Accept camera permissions
- Tap "Start Recording"
- Tap "Stop Recording"
- Look in the console for the H264 and H265 video sizes or grab the container using Xcode's "Devices" window and look at the resulting files