.TH "MP4" "3" "Version 0.9" "Cisco Systems Inc." "MP4 File Format Library"
.SH "NAME"
.LP 
\fBMP4GetHintTrackReferenceTrackId\fR \- Get the reference track id for a hint track
.SH "SYNTAX"
.LP 
#include <mp4.h>
.LP 
MP4TrackId \fBMP4GetHintTrackReferenceTrackId\fR(
.br 
	MP4FileHandle \fIhFile\fP,
.br 
	MP4TrackId \fIhintTrackId\fP
.br 
)
.SH "ARGUMENTS"
.LP 
.TP 
\fIhFile\fP
Specifies the mp4 file to which the operation applies.
.TP 
\fIhintTrackId\fP
Specifies the hint track to which the operation applies.
.SH "RETURN VALUES"
.LP 
Upon success, the track id of the reference media track. Upon an error, MP4_INVALID_TRACK_ID.

.SH "DESCRIPTION"
.LP 
\fBMP4GetHintTrackReferenceTrackId\fR gets the track id of the reference media track associated with the specified hint track.
.SH "SEE ALSO"
.LP 
MP4(3) MP4AddHintTrack(3)