.TH "MP4" "3" "Version 0.9" "Cisco Systems Inc." "MP4 File Format Library".SH "NAME".LP \fBMP4GetRtpPacketBFrame\fR \- Get the B frame flag of an RTP packet.SH "SYNTAX".LP #include <mp4.h>.LP int8_t \fBMP4GetRtpPacketBFrame\fR(.br 	MP4FileHandle \fIhFile\fP,.br 	MP4TrackId \fIhintTrackId\fP,.br 	u_int16_t \fIpacketIndex\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..TP \fIpacketIndex\fPSpecifies the packet to which the operation applies..SH "RETURN VALUES".LP Upon success, the state of the B frame flag for the specified packet. Upon an error, \-1..SH "DESCRIPTION".LP \fBMP4GetRtpPacketBFrame\fR returns the state of the B Frame flag of an RTP packet. See MP4AddRtpHint for a description of this flag. .SH "SEE ALSO".LP MP4(3) MP4AddRtpHint(3) MP4ReadRtpPacket(3)