NAME
MP4GetSampleDuration - Get the duration of a track sample
SYNTAX
#include <mp4.h>
MP4Duration MP4GetSampleDuration(
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 duration in track time scale units. Upon an
error, MP4_INVALID_DURATION.
DESCRIPTION
MP4GetSampleDuration returns the duration of the specified sample from
the specified track in the track time scale units. See
MP4ConvertFromTrackDuration() for how to map this value to another time
scale.
SEE ALSO
MP4(3) MP4ConvertFromTrackDuration(3)