I use [rgb2luma] which results of course in a 1 plane matrix, but when I try to record it on a file with [jit.record] it becomes a 4-plane video again. I checked the documentation but I didn’t see how to do this … Any suggestion?
Thanks

#P window setfont “Sans Serif” 9.;
#P window linecount 1;
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#P message 47 61 60 196617 framedump;
#P window setfont “Fixedwidth Serif” 10.;
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#P newex 270 314 136 1441802 jit.qt.record 720 576;
#B color 5;
#P window setfont “Sans Serif” 9.;
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#P newex 153 139 66 196617 jit.rgb2luma;
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#P newex 153 62 57 196617 qmetro 40;
#P newex 153 95 105 196617 jit.qt.movie 720 576;
#P window linecount 2;
#P comment 79 30 60 196617 press to record;
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