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NAME

       MP4GetSampleTime - Get the start time of a track sample

SYNTAX

       #include <mp4.h>

       MP4Timestamp MP4GetSampleTime(
            MP4FileHandle hFile,
            MP4TrackId trackId,
            MP4SampleId sampleId
       );

ARGUMENTS

       hFile  Specifies the mp4 file to which the operation applies.

       trackId
              Specifies the track to which the operation applies.

       sampleId
              Specifies the sample to which the operation applies. Caveat: the
              first sample has id 1 not 0.

RETURN VALUES

       Upon success, the sample start time in track time scale units. Upon  an
       error, MP4_INVALID_TIMESTAMP.

DESCRIPTION

       MP4GetSampleTime  returns  the  start time of the specified sample from
       the  specified   track   in   the   track   time   scale   units.   See
       MP4ConvertFromTrackTimestamp()  for  how  to  map this value to another
       time scale.

SEE ALSO

       MP4(3) MP4ConvertFromTrackDuration(3)