mp4gettracknumberofedits.3

完整的RTP RTSP代码库

.TH "MP4" "3" "Version 0.9" "Cisco Systems Inc." "MP4 File Format Library"
.SH "NAME"
.LP 
\fBMP4GetTrackNumberOfEdits\fR \- Get the number of edit segments for a track
.SH "SYNTAX"
.LP 
#include <mp4.h>
.LP 
u_int32_t \fBMP4GetTrackNumberOfEdits\fR(
.br 
	MP4FileHandle \fIhFile\fP,
.br 
	MP4TrackId \fItrackId\fP
.br 
)
.SH "ARGUMENTS"
.LP 
.TP 
\fIhFile\fP
Specifies the mp4 file to which the operation applies.
.TP 
\fItrackId\fP
Specifies the track for which the number of edit segments is desired.
.SH "RETURN VALUES"
.LP 
Upon success, the number of edit segments for the track. Upon an error, 0.
.SH "DESCRIPTION"
.LP 
\fBMP4GetTrackNumberOfEdits\fR returns the number of edit segments in the specified track in the mp4 file. Edit id's are the consecutive sequence of numbers from 1 to the total number of edit segments, i.e. 1\-based indexing, not 0\-based indexing.
.SH "SEE ALSO"
.LP 
MP4(3) MP4AddTrackEdit(3) MP4DeleteTrackEdit(3)