/usr/lib/pd/extra/Gem/pix_rtx-help.pd is in gem 1:0.93.3-9build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 | #N canvas 20 122 683 405 10;
#X text 452 8 GEM object;
#X obj 9 265 cnv 15 430 135 empty empty empty 20 12 0 14 -233017 -66577
0;
#X text 40 267 Inlets:;
#X text 39 362 Outlets:;
#X obj 9 227 cnv 15 430 30 empty empty empty 20 12 0 14 -195568 -66577
0;
#X text 18 231 Arguments:;
#X obj 8 56 cnv 15 430 165 empty empty empty 20 12 0 14 -233017 -66577
0;
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#X text 453 60 Example:;
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#N canvas 0 0 450 300 gemwin 0;
#X obj 132 136 gemwin;
#X obj 67 89 outlet;
#X obj 67 10 inlet;
#X msg 67 70 set destroy;
#X msg 132 112 create \, 1;
#X msg 198 112 destroy;
#X msg 156 71 set create;
#X obj 67 41 route create;
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#X restore 549 329 pd gemwin;
#X msg 549 310 create;
#X text 545 289 Create window:;
#X obj 451 173 cnv 15 155 80 empty empty empty 20 12 0 14 -24198 -66577
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#X obj 451 83 gemhead;
#X text 17 376 Outlet 1: gemlist;
#X text 24 281 Inlet 1: gemlist;
#X obj 451 322 square 3;
#X obj 451 300 pix_texture;
#X text 71 31 Class: pix object (timebased effect);
#X obj 451 151 pix_film;
#X obj 515 151 t f;
#X obj 464 103 bng 25 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
-1;
#N canvas 0 0 450 300 open 0;
#X obj 85 49 inlet;
#X obj 85 237 outlet;
#X obj 85 145 openpanel;
#X msg 85 179 open \$1;
#X msg 259 213 auto 1;
#X obj 268 179 loadbang;
#X connect 0 0 2 0;
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#X connect 3 0 1 0;
#X connect 4 0 1 0;
#X connect 5 0 4 0;
#X restore 464 131 pd open;
#X text 505 77 open a supported;
#X text 506 88 movie-clip;
#X text 523 114 macOS: quicktime;
#X text 516 104 windos: *.AVI;
#X text 523 124 linux: depends...;
#X obj 451 232 pix_rtx;
#X text 50 12 Synopsis: [pix_rtx];
#X text 21 86 [pix_rtx] does something similar to tx-transform. The
main differences are: 1) it is done in realtime \; 2) it is released
under the GnuGPL and hopes to stay free forever.;
#X text 23 142 basically the time-axis (now->later) and the x-axis
(left->right) are swapped. for more information see http://umlaeute.mur.at/rtx
;
#X text 25 183 beware: [pix_rtx] needs a lot of memory:: mem=(width^2)*height*4
bytes (for a 320x240 movie \, this would be more than 70MByte that
have to stay in RAM);
#X text 29 55 Description: RealTime vs. X transformation;
#X text 29 68 Description: Relative Time-X transformation;
#X msg 551 205 set;
#X msg 468 205 mode \$1;
#X obj 468 185 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 1
1;
#X text 87 240 <none>;
#X text 23 299 Inlet 1: set : sets the whole internal buffer to the
next incoming frame;
#X text 23 329 Inlet 1: mode 1|0 : clamp the discontinuity to the edge
or not. (default: 1);
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