mp4gettrackeditduration.3

网络MPEG4IP流媒体开发源代码

.TH "MP4" "3" "Version 0.9" "Cisco Systems Inc." "MP4 File Format Library"
.SH "NAME"
.LP 
\fBMP4GetTrackEditDuration\fR \- Get the duration of a track edit segment
.SH "SYNTAX"
.LP 
#include <mp4.h>
.LP 
MP4Duration \fBMP4GetTrackEditDuration\fR(
.br 
	MP4FileHandle \fIhFile\fP,
.br 
	MP4TrackId \fItrackId\fP,
.br 
	MP4EditId \fIeditId\fP
.br 
)
.SH "ARGUMENTS"
.LP 
.TP 
\fIhFile\fP
Specifies the mp4 file to which the operation applies.
.TP 
\fItrackId\fP
Specifies the track to which the operation applies.
.TP 
\fIeditId\fP
Specifies the edit segment for which the duration is desired.
.SH "RETURN VALUES"
.LP 
The duration of the edit segment in track time scale units of the track in the mp4 file.
.SH "DESCRIPTION"
.LP 
\fBMP4GetTrackEditDuration\fR returns the duration of the specified track edit segment.
.LP 
Caveat: The value is in units of the track time scale.
.SH "SEE ALSO"
.LP 
MP4(3) MP4SetTrackEditDuration(3)