mp4setsceneprofilelevel.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 
\fBMP4SetSceneProfileLevel\fR \- Sets the minimum MPEG\-4 scene graph profile and level required to render the contents of the file
.SH "SYNTAX"
.LP 
#include <mp4.h>
.LP 
bool \fBMP4SetSceneProfileLevel\fR(
.br 
        MP4FileHandle \fIhFile\fP,
.br 
        u_int8_t \fIprofileLevel\fP
.br 
)
.SH "ARGUMENTS"
.LP 
.TP 
\fIhFile\fP
Specifies the mp4 file to which the operation applies.
.SH "RETURN VALUES"
.LP 
Upon success, true (1). Upon an error, false (0).
.SH "DESCRIPTION"
.LP 
\fBMP4SetSceneProfileLevel\fR sets the minumum profile/level of MPEG\-4 scene graph support necessary to render the contents of the file.
.LP 
ISO/IEC 14496\-1:2001 MPEG\-4 Systems defines the following values:
.br 
	0x00		Reserved
.br 
	0x01		Simple 2D Profile @ Level 1
.br 
	0x02\-0x7F	Reserved
.br 
	0x80\-0xFD	User private
.br 
	0xFE		No scene graph profile specified
.br 
	0xFF		No scene graph required
.SH "SEE ALSO"
.LP 
MP4(3) MP4GetSceneProfileLevel(3)