Usage: qmelt.exe [options] [producer [name=value]* ]+
Options:
  -attach filter[:arg] [name=value]*       Attach a filter to the output
  -attach-cut filter[:arg] [name=value]*   Attach a filter to a cut
  -attach-track filter[:arg] [name=value]* Attach a filter to a track
  -attach-clip filter[:arg] [name=value]*  Attach a filter to a producer
  -audio-track | -hide-video               Add an audio-only track
  -blank frames                            Add blank silence to a track
  -consumer id[:arg] [name=value]*         Set the consumer (sink)
  -debug                                   Set the logging level to debug
  -filter filter[:arg] [name=value]*       Add a filter to the current track
  -getc                                    Get keyboard input using getc
  -group [name=value]*                     Apply properties repeatedly
  -help                                    Show this message
  -jack                                    Enable JACK transport synchronization
  -join clips                              Join multiple clips into one cut
  -mix length                              Add a mix between the last two cuts
  -mixer transition                        Add a transition to the mix
  -null-track | -hide-track                Add a hidden track
  -profile name                            Set the processing settings
  -progress                                Display progress along with position
  -remove                                  Remove the most recent cut
  -repeat times                            Repeat the last cut
  -query                                   List all of the registered services
  -query "consumers" | "consumer"=id       List consumers or show info about one
  -query "filters" | "filter"=id           List filters or show info about one
  -query "producers" | "producer"=id       List producers or show info about one
  -query "transitions" | "transition"=id   List transitions, show info about one
  -query "profiles" | "profile"=id         List profiles, show info about one
  -query "presets" | "preset"=id           List presets, show info about one
  -query "formats"                         List audio/video formats
  -query "audio_codecs"                    List audio codecs
  -query "video_codecs"                    List video codecs
  -serialise [filename]                    Write the commands to a text file
  -silent                                  Do not display position/transport
  -split relative-frame                    Split the last cut into two cuts
  -swap                                    Rearrange the last two cuts
  -track                                   Add a track
  -transition id[:arg] [name=value]*       Add a transition
  -verbose                                 Set the logging level to verbose
  -timings                                 Set the logging level to timings
  -version                                 Show the version and copyright
  -video-track | -hide-audio               Add a video-only track
For more help: <https://www.mltframework.org/>