mp4gethinttracksdp.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 
\fBMP4GetHintTrackSdp\fR \- Get the SDP media level description associated with a hint track
.SH "SYNTAX"
.LP 
#include <mp4.h>
.LP 
const char* \fBMP4GetHintTrackSdp\fR(
.br 
	MP4FileHandle \fIhFile\fP,
.br 
	MP4TrackId \fIhintTrackId\fP
.br 
)
.SH "ARGUMENTS"
.LP 
.TP 
\fIhFile\fP
Specifies the mp4 file to which the operation applies.
.TP 
\fItrackId\fP
Specifies the hint track to which the operation applies.
.SH "RETURN VALUES"
.LP 
The SDP media level description fragment associated with the hint track.
.SH "DESCRIPTION"
.LP 
\fBMP4GetHintTrackSdp\fR returns the SDP (IETF RFC 2327) media level fragment associated with the hint track. This is used by a streaming server to create a complete SDP description of the multimedia session represented by the file.
.LP 
The mp4broadcaster test program provided with the MP4 library gives an example of using this call to create the complete SDP description.
.SH "SEE ALSO"
.LP 
MP4(3) MP4SetHintTrackSdp(3) MP4AppendHintTrackSdp(3) MP4GetSessionSdp(3)