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qtdefaults(1)		  BSD General Commands Manual		 qtdefaults(1)

NAME
     qtdefaults -- access the QuickTime Preferences

SYNOPSIS
     qtdefaults read LegacyAudioCodecsEnabled
     qtdefaults read LegacyVideoCodecs [<codec>]
     qtdefaults read InstalledLegacyVideoCodecs
     qtdefaults read TransportSettings
     qtdefaults read MimeSettings
     qtdefaults read MediaKeys [category]
     qtdefaults reset DownloadCache
     qtdefaults reset TransportSettings
     qtdefaults reset MimeSettings
     qtdefaults reset LegacyVideoCodecs
     qtdefaults write LegacyAudioCodecsEnabled <yes | no>
     qtdefaults write LegacyVideoCodecs <videocodec> <enabled | disabled>
     qtdefaults write MediaKeys <category> <key>
     qtdefaults write TransportSettings <protocol> <port>
     qtdefaults delete MediaKeys <category> <key>

DESCRIPTION
     qtdefaults allows users to read, write, reset and delete QuickTime user
     preferences from a command line shell.  The commands are as follows:

     read LegacyAudioCodecsEnabled
	      Prints whether legacy audio codecs are enabled for use in the
	      export settings.

     read LegacyVideoCodecs <videocodec>
	      Prints whether the specified legacy video codec is enabled for
	      use in the export settings.  It will print "enabled" if the
	      codec is enabled, "disabled" if disabled, or "unrecognized" if
	      the codec is unknown.

     read LegacyVideoCodecs
	      Prints list of legacy audio codecs currently enabled for use in
	      the export settings.

     read InstalledLegacyVideoCodecs
	      Prints out a list of all legacy video codecs installed in the
	      current system.  This list includes both enabled and disabled
	      video codecs. These codec identifiers are used with 'qtdefaults
	      read LegacyVideoCodecs' and 'qtdefaults write Lega‐
	      cyVideoCodecs'.

     read TransportSettings
	      Prints the transport settings being used by QuickTime for
	      streaming media.

     read MimeSettings
	      Prints the MIME types currently being handled by the QuickTime
	      plugin.

     read MediaKeys <category>
	      Prints the media keys being used by QuickTime to playback
	      encrypted movies.	 The optional <category> parameter can be used
	      to list only the media keys associated with the specified cate‐
	      gory.

     reset DownloadCache
	      Empties the cache being used by QuickTime to store downloaded
	      content.

     reset TransportSettings
	      Resets QuickTime to automatically determine the best protocol
	      and port for streaming media.

     reset MimeSettings
	      Resets QuickTime plug-in to handle the default MIME types.

     reset LegacyVideoCodecs
	      Disables all QuickTime legacy video codecs.

     write LegacyAudioCodecsEnabled <value>
	      A <value> of "yes" will enable the legacy audio codecs for use
	      in the export settings and a <value> of "no" will disable them.

     write LegacyVideoCodecs <videocodec> <value>
	      A <value> of "enabled" will enable the specified legacy video
	      codec for use in the export settings and a <value> of "disabled"
	      will disable it.

     write MediaKeys <category> <key>
	      Adds the media key specified by <category> and <key> values to
	      the list of media keys used to playback encrypted movies.

     write TransportSettings [protocol [port]]
	      Sets QuickTime streaming to use the transport settings as speci‐
	      fied by <protocol> and <port>.  Following are the recommended
	      values for <protocol> and <port>:
		    - To use HTTP, specify <protocol> = HTTP and <port> = 80
		    - To use UDP, specify <protocol> = UDP and either <port> =
		    554 or <port> = 7070

     delete MediaKeys <category> <key>
	      Deletes the media key specified by <category> and <key> if it
	      exists.

SEE ALSO
     defaults(1)

MacOS X				April 27, 2024			       MacOS X

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