| .TH "MP4" "3" "Version 0.9" "Cisco Systems Inc." "MP4 File Format Library" |
| .SH "NAME" |
| .LP |
| \fBMP4CloneTrack\fR \- Make a clone of a specified track |
| .SH "SYNTAX" |
| .LP |
| #include <mp4.h> |
| .LP |
| MP4TrackId \fBMP4CloneTrack\fR( |
| .br |
| MP4FileHandle \fIsrcFile\fP, |
| .br |
| MP4TrackId \fIsrcTrackId\fP, |
| .br |
| MP4FileHandle \fIdstFile\fP = MP4_INVALID_FILE_HANDLE, |
| .br |
| MP4TrackId \fIdstHintTrackReferenceTrack\fP = MP4_INVALID_TRACK_ID |
| .br |
| ) |
| .SH "ARGUMENTS" |
| .LP |
| .TP |
| \fIsrcFile\fP |
| Specifies the mp4 file of the source track of the operation. |
| .TP |
| \fIsrcTrackId\fP |
| Specifies the track id of the track to be cloned. |
| .TP |
| \fIdstFile\fP |
| Specifies the mp4 file of the new, cloned track. If the value is MP4_INVALID_FILE_HANDLE, the new track is created in the same file as the source track. |
| .TP |
| \fIdstHintTrackReferenceTrack\fP |
| When cloning a hint track, this parameter specifies the track id of the reference track in the destination file. |
| .SH "RETURN VALUES" |
| .LP |
| Upon success, the track id of the new track. Upon an error, MP4_INVALID_TRACK_ID. |
| |
| .SH "DESCRIPTION" |
| .LP |
| \fBMP4CloneTrack\fR creates a new track to an mp4 file that is a copy of an existing track with respect to the track media type, and other control information. |
| .LP |
| Note this function does not copy the media samples of the source track to the new track. If you want to do that use MP4CopyTrack() instead. |
| |
| |
| .SH "SEE ALSO" |
| .LP |
| MP4(3) MP4CopyTrack(3) |
