mp4getsamplesync.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 
\fBMP4GetSampleSync\fR \- Get the state of the sample sync flag
.SH "SYNTAX"
.LP 
#include <mp4.h>
.LP 
u_int32_t \fBMP4GetSampleSize\fR(
.br 
	MP4FileHandle \fIhFile\fP,
.br 
	MP4TrackId \fItrackId\fP,
.br 
	MP4SampleId \fIsampleId\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 
\fIsampleId\fP
Specifies the sample to which the operation applies. Caveat: the first sample has id 1 not 0.

.SH "RETURN VALUES"
.LP 
Upon success, the state of the sync flag, either true (1) or false (0). Upon an error, \-1.
.SH "DESCRIPTION"
.LP 
\fBMP4GetSampleSync\fR returns the state of the sync/random access flag of the specified sample from the specified track.
.SH "SEE ALSO"
.LP 
MP4(3)