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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 con-tain contain
     tain legacy media tracks. In this case a legacy format is one which cannot be read directly by CoreMe-dia CoreMedia
     dia 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 noth-ing. nothing.
     ing. 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 reencoded
              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 cho-sen chosen
              sen 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 destination path will be replaced by the new output.  qtmodernizer
              will not replace the file at original source path used in the command.

     -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 contained 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 example 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-modern-ized.mov" "legacy_movie-modernized.mov"
     ized.mov"

HISTORY
     qtmodernizer command first appeared in Mac OS X 10.9.

Mac OS X                       October 11, 2013                       Mac OS X