.TH "MP4" "3" "Version 0.9" "Cisco Systems Inc." "MP4 File Format Library".SH "NAME".LP \fBMP4GetRtpHintNumberOfPackets\fR \- Get the number of packets in an RTP hint.SH "SYNTAX".LP #include <mp4.h>.LP u_int16_t \fBMP4GetRtpHintNumberOfPackets\fR(.br 	MP4FileHandle \fIhFile\fP,.br 	MP4TrackId \fIhintTrackId\fP.br ).SH "ARGUMENTS".LP .TP \fIhFile\fPSpecifies the mp4 file to which the operation applies..TP \fIhintTrackId\fPSpecifies the hint track to which the operation applies..SH "RETURN VALUES".LP Upon success, the number of packets in the current RTP hint. Upon an error, 0..SH "DESCRIPTION".LP \fBMP4GetRtpHintNumberOfPackets\fR returns the number of packets contained in the current RTP hint as established by a call to MP4ReadRtpHint()..SH "SEE ALSO".LP MP4(3) MP4ReadRtpHint(3)