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NAME

       MP4GetTrackFixedSampleDuration - Get the fixed duration of samples in a
       track

SYNTAX

       #include <mp4.h>

       MP4Duration MP4GetTrackFixedSampleDuration(
            MP4FileHandle hFile,
            MP4TrackId trackId
       )

ARGUMENTS

       hFile  Specifies the mp4 file to which the operation applies.

       trackId
              Specifies the track to which the operation applies.

RETURN VALUES

       Upon success, the number of fixed duration of the samples in the  track
       in track time scale units. Upon an error, MP4_INVALID_DURATION.

DESCRIPTION

       MP4GetTrackFixedSampleDuration  returns  the duration of samples in the
       specified track in the mp4  file,  if  this  value  is  fixed  for  all
       samples.  This is typically the case for audio tracks and video tracks.
       If the track samples have variable duration, then  MP4_INVALID_DURATION
       is returned.

SEE ALSO

       MP4(3)