/usr/lib/pd/extra/pdp/examples/example14.pd is in pd-pdp 1:0.14.1-3build1.
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 | #N canvas 621 348 611 467 10;
#X obj 168 329 pdp_glx;
#X obj 168 78 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 1 1
;
#X obj 168 142 pdp_v4l;
#X obj 168 108 metro 40;
#X msg 265 83 open /dev/video1;
#X floatatom 311 151 5 0 0;
#X obj 168 194 pdp_agc 0.5;
#X floatatom 310 211 5 0 0;
#X obj 168 245 pdp_contrast 0.5;
#X msg 4 157 chanmask \$1;
#X floatatom 4 133 5 0 0;
#X msg 4 104 1;
#X msg 35 104 3;
#X msg 67 104 5;
#X msg 99 104 7;
#X obj 314 192 hsl 128 15 0 1 0 1 empty empty empty -2 -6 0 8 -262144
-1 -1 12300 1;
#X obj 314 132 hsl 128 15 0 1 0 1 empty empty empty -2 -6 0 8 -262144
-1 -1 7900 1;
#X msg 265 58 open /dev/video0;
#X floatatom 310 272 5 0 0;
#X obj 314 253 hsl 128 15 0 3 0 1 empty empty empty -2 -6 0 8 -262144
-1 -1 0 1;
#X obj 168 298 pdp_saturation 0.5;
#X text 7 79 Y;
#X text 36 78 YCr;
#X text 68 79 YCb;
#X text 98 78 YCrCb;
#X text 25 15 some basic image enhancements;
#X text 13 60 agc color channels;
#X obj 183 166 pdp_flip_lr;
#X connect 1 0 3 0;
#X connect 2 0 27 0;
#X connect 3 0 2 0;
#X connect 4 0 2 0;
#X connect 5 0 6 1;
#X connect 6 0 8 0;
#X connect 7 0 8 1;
#X connect 8 0 20 0;
#X connect 9 0 6 0;
#X connect 10 0 9 0;
#X connect 11 0 10 0;
#X connect 12 0 10 0;
#X connect 13 0 10 0;
#X connect 14 0 10 0;
#X connect 15 0 7 0;
#X connect 16 0 5 0;
#X connect 17 0 2 0;
#X connect 18 0 20 1;
#X connect 19 0 18 0;
#X connect 20 0 0 0;
#X connect 27 0 6 0;
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