A Boolean property that specifies if the current player view’s media can be trimmed.
- macOS 10.9+
You should check the value of this property before calling
begin to determine if trimming is supported by the current media. This property will return
false if not supported by the current
controls selection or if the media is content protected or is served using HTTP Live Streaming.
If you are presenting a menu item to initiate trimming, a good place to perform this check is in the
validate method of