mp4getvideoprofilelevel.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 
\fBMP4GetVideoProfileLevel\fR \- Gets the minimum MPEG\-4 video profile and level required to render the contents of the file
.SH "SYNTAX"
.LP 
#include <mp4.h>
.LP 
u_int8_t \fBMP4GetVideoProfileLevel\fR(
.br 
        MP4FileHandle \fIhFile\fP
.br 
)
.SH "ARGUMENTS"
.LP 
.TP 
\fIhFile\fP
Specifies the mp4 file to which the operation applies.
.SH "RETURN VALUES"
.LP 
The current video profile/level for the file. See MP4SetVideoProfileLevel() for known values.
.SH "DESCRIPTION"
.LP 
\fBMP4GetVideoProfileLevel\fR returns the minumum profile/level of MPEG\-4 video support necessary to render the contents of the file. 
.SH "SEE ALSO"
.LP 
MP4(3) MP4SetVideoProfileLevel(3)