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MP4(3)			    MP4	File Format Library			MP4(3)

NAME
       MP4Modify - Modify an existing mp4 file

SYNTAX
       #include	<mp4.h>

       MP4FileHandle MP4Modify(
	    const char*	fileName,
	    u_int32_t verbosity	= 0,
	    u_int32_t flags = 0
       );

ARGUMENTS
       fileName
	      Specifies	the path name of the file to be	modified.

       verbosity
	      Specifies	 a  bitmask  of	 diagnostic details the	library	should
	      print to stdout during its  functioning.	See  MP4SetVerbosity()
	      for values.

       flags  Currently	ignored.

RETURN VALUES
       Upon  successful	 completion  the  function returns a handle to the mp4
       file. This is used in subsequent	calls to the  library  to  modify  the
       file.  Upon an error, MP4_INVALID_FILE_HANDLE is	returned.

DESCRIPTION
       MP4Modify is the	first call that	should be used when you	want to	modify
       an existing mp4 file. It	is roughly equivalent to  opening  a  file  in
       read/write mode.

       Since modifications to an existing mp4 file can result in a sub-optimal
       file layout, you	may want to use	MP4Optimize() after you	have  modified
       and closed the mp4 file.

SEE ALSO
       MP4(3)

Cisco Systems Inc.		  Version 1.0				MP4(3)
NAME | SYNTAX | ARGUMENTS | RETURN VALUES | DESCRIPTION | SEE ALSO

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