manpagez: man pages & more
man qtmodernizer(1)
Home | html | info | man
qtmodernizer(1)           BSD General Commands Manual          qtmodernizer(1)


NAME

     qtmodernizer

     -- Tool to convert legacy movies to modern format with minimal changes.


SYNOPSIS

     qtmodernizer [options ...] pathToSource [pathToDestination]


DESCRIPTION

     qtmodernizer is a command line tool to examine a media file which may be
     in a legacy format or may contain legacy media tracks. In this case a
     legacy format is one which cannot be read directly by CoreMedia or
     AVFoundation frameworks.

     qtmodernizer examines all the tracks to determine if they are all in a
     form that can currently be played. If all tracks are playable and the
     format is readable, qtmodernizer does returns and does nothing. If any of
     the audio or video tracks are encoded with a codec that CoreMedia does
     not support, that track will be converted to a modern format, usually
     H.264 for video and AAC for audio (see --useprores for other choices).

     Command line options of qtmodernize:

     -h | --help

     -p | --useprores
              If -p or --useprores is specified, qtmodernizer will use the
              ProRes video codec and LPCM audio codec instead of H.264 and
              AAC-LC. For video tracks it will produce AppleProRes422. For
              audio it will produce uncompressed output (lpcm). Tracks outher
              than audio or video are not re-encoded and will not be affected.
              Either AppleProRes422 may be chosen or the AppleProRes4444
              option may be chosen but not both.

     -p4 | --useprores4444
              If -p4 or --useprores4444 is specified, qtmodernizer will use
              the ProRes4444 video codec and LPCM audio codec instead of H.264
              and AAC-LC. For video tracks it will produce AppleProRes4444.
              For audio it will produce uncompressed output (lpcm). Tracks
              outher than audio or video are not re-encoded and will not be
              affected. Either AppleProRes4444 may be chosen or the
              AppleProRes422 option may be chosen but not both.

     -r | --replace
              Normally qtmodernizer will not replace any existing files. If
              --replace is specified, a file already existing at the destina-
              tion path will be replaced by the new output.  qtmodernizer will
              not replace the file at original source path used in the com-
              mand.

     -v | --verbose
              Normally qtmodernizer only displays important error or warning
              messages. Specifying --verbose causes other information about
              the modernization to be displayed on the command line.
              --infoonly implies --verbose.

     -i | --infoonly
              Causes qtmodernizer to display information about the tracks con-
              tained in the source file and what the modernization process
              would be for each track (if any) but does not actually produce
              an output file.


EXAMPLES

          qtmodernize legacy_movie.mov modern_movie.mov

     Each legacy audio and video track would be re-encoded to a modern (H.264
     or AAC) track with other tracks passed through. The resulting movie is
     saved as modern_movie.mov

          qtmodernize -p legacy_movie.mov modern_movie.mov

     Legacy audio and video tracks would be re-encoded like in the above exam-
     ple but the resulting codecs would be ProRes for video and LPCM for audio

          qtmodernize ~/Movies/legacy_movie.mov

     This command will create a modernized movie in the ~/Movies directory
     named "legacy_movie-modernized.mov"


HISTORY

     qtmodernizer command first appeared in Mac OS X 10.9.

Mac OS X                       October 15, 2013                       Mac OS X

Mac OS X 10.9 - Generated Tue Oct 15 07:56:40 CDT 2013
© manpagez.com 2000-2021
Individual documents may contain additional copyright information.