```
public final class AVMovieWritingOptions
extends java.lang.Object
```
[@enum] AVMovieWritingOptions These options can be passed into writeMovieHeaderToURL:fileType:options:error: to control the writing of a movie header to a destination URL. [@constant] AVMovieWritingAddMovieHeaderToDestination Writing the movie header will remove any existing movie header in the destination file and add a new movie header, preserving any other data in the file. If the destination file was empty, a file type box will be written at the beginning of the file. [@constant] AVMovieWritingTruncateDestinationToMovieHeaderOnly If set, writing the movie header will truncate all existing data in the destination file and write a new movie header, thereby creating a pure reference movie file. A file type box will be written at the beginning of the file. You would not want to use the AVMovieWritingTruncateDestinationToMovieHeaderOnly option if you had written sample data to the destination file using (for example) -[AVMutableMovie insertTimeRange:ofAsset:atTime:copySampleData:error:] with copySampleData set to YES, since that data would be lost.

Modifier and Type	Field	Description
`static long`	`AddMovieHeaderToDestination`
`static long`	`TruncateDestinationToMovieHeaderOnly`

Class AVMovieWritingOptions