MP4 - Online Linux Manual PageSection : 3
Updated : Version 1.0
Source : Cisco Systems Inc.
Note : MP4 File Format Library

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NAMEMP4Create − Create a new mp4 file

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SYNTAX#include <mp4.h> MP4FileHandle MP4Create(
const char* fileName,
u_int32_t verbosity = 0,
u_int32_t createFlags = 0
);

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ARGUMENTSfileName  Specifies the path name of the file to be created. verbosity  Specifies a bitmask of diagnostic details the library should print to stdout during its functioning. See MP4SetVerbosity() for values. createFlags  Bit mask that allows the user to set 64 bit values for file size or for time. Values are:
MP4_CREATE_64BIT_DATA create 64 bit data atoms
MP4_CREATE_64BIT_TIME create 64 bit time atoms

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

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DESCRIPTIONMP4Create is the first call that should be used when you want to create a new, empty mp4 file. It is equivalent to opening a file for writing, but also involved the creation of the necessary mp4 framework structures. I.e. a MP4Create() followed by an MP4Close() will result in a file with a non−zero size. Caveat: If MP4Create() is called with a file name that already exists the contents of the existing file will be lost, assuming the system permissions allow the calling process to truncate the existing file.

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SEE ALSOMP4(3) 0

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