Finding and marking long frames, Using the mark long frames command, P. 113) – Apple Final Cut Pro 5 User Manual
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Chapter 9
Diagnostic Tools for Clips
113
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For files with an audio track:
 Track Number and Size: The track number of the audio track (multichannel QuickTime
files may have more than one audio track) and its size on disk.
 Duration: The duration of the audio track.
 Average Data Rate: The average data rate of the audio track alone.
 Format: The bit rate of the audio track and whether it’s stereo or mono.
 Sample: The sampling rate of the audio track in kilohertz (kHz).
For files with a timecode track:
 Track Name: The track name of the timecode track. (Some QuickTime files may have
more than one timecode track.)
 Timecode: The starting timecode value for this clip.
 Reel: The reel name for this clip.
Finding and Marking Long Frames
Long frames are frames with nonstandard frame durations that can occur within a clip
as a result of a problem during capture. You might have long frames in your program
for several reasons. Regardless of why there are long (dropped) frames, you need to
know where they are so you can either prevent them or work around them.
A still image in a movie that’s been made to be deliberately longer than one frame is
also a long frame. Long frames of this type may occur in movies created with one of
the many QuickTime authoring programs. For example, if you use QuickTime Player to
insert a still image with a duration of more than one frame into a movie, that frame is
considered a long frame.
Using the Mark Long Frames Command
The Mark Long Frames command in the Tools menu identifies long frames within clips
in your program. Each selected clip is scanned, and Final Cut Pro places markers to
indicate the location of any long frames that are detected. Each marker is labeled “Long
Frame _,” where _ starts at 1 and increases, depending on how many long frames are
present. If the long frame is the result of a still image in an authored QuickTime movie,
that marker will also include the duration of the long frame.
Important:
If you have long frames in your program, it’s important that you find the
problem and solve it. This will prevent further headaches down the line, such as lost
audio/video sync and incorrect timecode. For more information on how to
troubleshoot your system if you experience dropped frames, see “