A time describing the average frame duration of the video data.
- iOS 7.0+
- macOS 10.9+
- Mac Catalyst 13.0+
- tvOS 9.0+
Setting this property allows the output settings assistant to make a more informed recommendation for the video settings that should be used. After setting this property, you should re-query the
video property to get the new recommendation.
The default value is
1/30, which means that the output settings assistant is assuming that your source video has a frame rate of 30fps.