1MELT(1) User Commands MELT(1)
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6 melt - author, play, and encode multitrack audio/video compositions
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9 melt [options] [producer [name=value]* ]+
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12 -attach filter[:arg] [name=value]*
13 Attach a filter to the output
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15 -attach-cut filter[:arg] [name=value]*
16 Attach a filter to a cut
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18 -attach-track filter[:arg] [name=value]* Attach a filter to a track
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20 -attach-clip filter[:arg] [name=value]*
21 Attach a filter to a producer
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23 -audio-track | -hide-video
24 Add an audio-only track
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26 -blank frames
27 Add blank silence to a track
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29 -chain id[:arg] [name=value]*
30 Add a producer as a chain
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32 -consumer id[:arg] [name=value]*
33 Set the consumer (sink)
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35 -debug Set the logging level to debug
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37 -filter filter[:arg] [name=value]*
38 Add a filter to the current track
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40 -getc Get keyboard input using getc
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42 -group [name=value]*
43 Apply properties repeatedly
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45 -help Show this message
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47 -jack Enable JACK transport synchronization
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49 -join clips
50 Join multiple clips into one cut
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52 -link id[:arg] [name=value]*
53 Add a link to a chain
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55 -mix length
56 Add a mix between the last two cuts
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58 -mixer transition
59 Add a transition to the mix
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61 -null-track | -hide-track
62 Add a hidden track
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64 -profile name
65 Set the processing settings
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67 -progress
68 Display progress along with position
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70 -query List all of the registered services
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72 -query "consumers" | "consumer"=id
73 List consumers or show info about one
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75 -query "filters" | "filter"=id
76 List filters or show info about one
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78 -query "producers" | "producer"=id
79 List producers or show info about one
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81 -query "transitions" | "transition"=id
82 List transitions, show info about one
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84 -query "profiles" | "profile"=id
85 List profiles, show info about one
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87 -query "presets" | "preset"=id
88 List presets, show info about one
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90 -query "formats"
91 List audio/video formats
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93 -query "audio_codecs"
94 List audio codecs
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96 -query "video_codecs"
97 List video codecs
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99 -quiet Set the logging level to quiet
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101 -remove
102 Remove the most recent cut
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104 -repeat times
105 Repeat the last cut
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107 -repository path
108 Set the directory of MLT modules
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110 -serialise [filename]
111 Write the commands to a text file
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113 -setlocale
114 Make numeric strings locale-sensitive (legacy support)
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116 -silent
117 Do not display position/transport
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119 -split relative-frame
120 Split the last cut into two cuts
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122 -swap Rearrange the last two cuts
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124 -track Add a track
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126 -transition id[:arg] [name=value]*
127 Add a transition
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129 -verbose
130 Set the logging level to verbose
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132 -timings
133 Set the logging level to timings
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135 -version
136 Show the version and copyright
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138 -video-track | -hide-audio
139 Add a video-only track
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141 For more help: <https://www.mltframework.org/>
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144 Copyright © 2002-2022 Meltytech, LLC <https://www.mltframework.org/>
145 This is free software; see the source for copying conditions. There is
146 NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
147 PURPOSE.
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151melt 7.12.0 November 2022 MELT(1)