Re: How to set the looping attribute on a QTMovie?

• Subject: Re: How to set the looping attribute on a QTMovie?
• From: Tim Monroe <email@hidden>
• Date: Tue, 14 Dec 2004 21:19:07 -0800
• Delivered-to: email@hidden
• Delivered-to: email@hidden

On Dec 14, 2004, at 9:13 PM, Richard Travis Rose wrote:

I've been following this thread as well. He is just using NSMovie; it sounds like he needs the underlying calls to QuickTime's C API, to set the looping mode.

In that case, this might be useful:

//////////
//
// QTUtils_MakeMovieLoop
// Set the specified movie to loop.
//
//////////

OSErr QTUtils_MakeMovieLoop (Movie theMovie, Boolean isPalindrome)
{
  TimeBase    myTimeBase = NULL;
  long       myFlags = 0L;
  OSErr      myErr = paramErr;

  // make sure we've got a movie
  if (theMovie == NULL)
    goto bail;

  myErr = noErr;

  // set the movie's play hints to enhance looping performance
  SetMoviePlayHints(theMovie, hintsLoop, hintsLoop);

  // set the looping flag of the movie's time base
  myTimeBase = GetMovieTimeBase(theMovie);
  myFlags = GetTimeBaseFlags(myTimeBase);
  myFlags |= loopTimeBase;

  SetTimeBaseFlags(myTimeBase, myFlags);

bail:
  return(myErr);
}

Tim Monroe
QuickTime Engineering
email@hidden

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