convert midi file to piano video with highlighted keys
in case you create videos with piano learning/howto this one might be useful for you. Simply record your playing to a midi-file and use this little script to create footage that you can use in your video editor.
- python3
- mydy
pip install mydy - cairosvg
pip install cairosvg - ffmpeg
- fluidsynth + soundfont-fluid (optional when audio should be generated as well)
create a file named m2v.local.conf and override any defaults...
[video]
; resolution [pixel]
width = 800
height = 100
frameRate = 25
; fadeIn & fadeOut decreases performance as there are less reusable frames
; fadeIn effect is a slightly darker color at note hit
noteFadeIn = 0
; fadeOut might be useful for very short notes that are difficult to see
noteFadeOut = 0
; add audio requires fluidsynth and a soundfont-file (e.g. soundfont-fluid)
addAudio = 0
soundFont = /usr/share/soundfonts/FluidR3_GM.sf2
[piano]
; use any of the noteNumbers [0-127] as startNote/endNote
; "auto" will use the lowest/highest note of the midi file as first/last key
; black key boundries gets extended to next white key
;-----------------------------------------------------------
; note numbers
; octave | C C# D D# E F F# G G# A A# B
;-----------------------------------------------------------
; -2 | 0 1 2 3 4 5 6 7 8 9 10 11
; -1 | 12 13 14 15 16 17 18 19 20 21 22 23
; 0 | 24 25 26 27 28 29 30 31 32 33 34 35
; 1 | 36 37 38 39 40 41 42 43 44 45 46 47
; 2 | 48 49 50 51 52 53 54 55 56 57 58 59
; 3 | 60 61 62 63 64 65 66 67 68 69 70 71
; 4 | 72 73 74 75 76 77 78 79 80 81 82 83
; 5 | 84 85 86 87 88 89 90 91 92 93 94 95
; 6 | 96 97 98 99 100 101 102 103 104 105 106 107
; 7 | 108 109 110 111 112 113 114 115 116 117 118 119
; 8 | 120 121 122 123 124 125 126 127
startNote = auto
endNote = auto
colorWhiteKeys = #FFFFFF
colorBlackKeys = #131313
colorHighlight = #DE4439
outlineColorWhiteKeys = #131313
outlineColorBlackKeys = #131313
outlineColorHighlight = #6e160f
; TODO specify bin paths to make this script windows compatible
;[general]
;bin.ffmpeg = ffmpeg
;bin.fluidsynth = fluidsynth
;logLevel = info$ ./midi2video.py -i example.mid
will create a file example.mid.mp4