Inside Macintosh: QuickTime /

Chapter 2 - Movie Toolbox / Movie Toolbox Reference

Functions That Modify Movie Properties / Working with Movie Time

GetMovieTimeBase

The GetMovieTimeBase function returns a movie's time base.

pascal TimeBase GetMovieTimeBase (Movie theMovie);

theMovie

Specifies the movie for this operation. Your application obtains this movie identifier from such functions as NewMovie, NewMovieFromFile, and NewMovieFromHandle (described on page 2-80, page 2-76, and page 2-78, respectively).

DESCRIPTION

You cannot use the returned time base value with the Movie Toolbox's SetTimeBaseMasterTimeBase and SetTimeBaseMasterClock functions (described on page 2-301 and page 2-299, respectively). Use the SetMovieMasterTimeBase and SetMovieMasterClock functions (described on page 2-299 and page 2-298, respectively) instead.

The Movie Toolbox disposes of a movie's time base when you dispose of the movie.

SPECIAL CONSIDERATIONS

Do not dispose of the TimeBase result returned by the GetMovieTimeBase function as it is owned by the movie.

ERROR CODES

invalidMovie

-2010

This movie is corrupted or invalid