Specifies the mp4 file to which the operation applies.
verbosity
Specifies a bitmask of diagnostic details the library should print to stdout during its functioning. The default is to operate silently. Possible values are:
MP4_DETAILS_ERRORReasons for errors
MP4_DETAILS_WARNINGWarnings
MP4_DETAILS_READRead operations
MP4_DETAILS_WRITEWrite operations
MP4_DETAILS_FINDFind property operations
MP4_DETAILS_TABLEPer table entry info
MP4_DETAILS_SAMPLEPer sample info
MP4_DETAILS_HINTPer RTP hint info
MP4_DETAILS_ALLAll possible details
RETURN VALUES
Upon success, true (1). Upon an error, false (0).
DESCRIPTION
MP4SetVerbosity allows control over the level of diagnostic information printed out by the library. It can be called at any time. Since much is done by the library when opening an mp4 file, this function is built into functions such as MP4Create(), MP4Modify(), and MP4Read().