/usr/lib/lv2/valve-swh.lv2/plugin.ttl is in swh-lv2 1.0.15+20130517.git978d5d8-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 | @prefix : <http://lv2plug.in/ns/lv2core#> .
@prefix swh: <http://plugin.org.uk/swh-plugins/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix doap: <http://usefulinc.com/ns/doap#> .
@prefix swhext: <http://plugin.org.uk/extensions#> .
@prefix pg: <http://lv2plug.in/ns/ext/port-groups#> .
@prefix pprops: <http://lv2plug.in/ns/ext/port-props#> .
swh:valve a :Plugin ;
a :DistortionPlugin ;
a :SimulatorPlugin ;
doap:name "Valve saturation" ;
doap:maintainer [
foaf:name "Steve Harris";
foaf:homepage <http://plugin.org.uk/> ;
foaf:mbox <mailto:steve@plugin.org.uk> ;
] ;
doap:license <http://usefulinc.com/doap/licenses/gpl> ;
:documentation <http://plugin.org.uk/ladspa-swh/docs/ladspa-swh.html#valve> ;
:pluginProperty :hardRtCapable ;
:port [
a :InputPort, :ControlPort ;
:name "Distortion level" ;
:index 0 ;
:symbol "q_p" ;
:minimum 0 ;
:maximum 1 ;
:default 0.0 ;
] ;
:port [
a :InputPort, :ControlPort ;
:name "Distortion character" ;
:index 1 ;
:symbol "dist_p" ;
:minimum 0 ;
:maximum 1 ;
:default 0.0 ;
] ;
:port [
a :InputPort, :AudioPort ;
:name "Input" ;
:index 2 ;
:symbol "input" ;
] ;
:port [
a :OutputPort, :AudioPort ;
:name "Output" ;
:index 3 ;
:symbol "output" ;
] ;
swhext:code """
#include "ladspa-util.h"
""" ;
swhext:callback [
swhext:event "activate" ;
swhext:code """
itm1 = 0.0f;
otm1 = 0.0f;
""" ;
] ;
swhext:callback [
swhext:event "run" ;
swhext:code """
unsigned long pos;
LADSPA_Data fx;
const float q = q_p - 0.999f;
const float dist = dist_p * 40.0f + 0.1f;
if (q == 0.0f) {
for (pos = 0; pos < sample_count; pos++) {
if (input[pos] == q) {
fx = 1.0f / dist;
} else {
fx = input[pos] / (1.0f - f_exp(-dist * input[pos]));
}
otm1 = 0.999f * otm1 + fx - itm1;
round_to_zero(&otm1);
itm1 = fx;
buffer_write(output[pos], otm1);
}
} else {
for (pos = 0; pos < sample_count; pos++) {
if (input[pos] == q) {
fx = 1.0f / dist + q / (1.0f - f_exp(dist * q));
} else {
fx = (input[pos] - q) /
(1.0f - f_exp(-dist * (input[pos] - q))) +
q / (1.0f - f_exp(dist * q));
}
otm1 = 0.999f * otm1 + fx - itm1;
round_to_zero(&otm1);
itm1 = fx;
buffer_write(output[pos], otm1);
}
}
plugin_data->itm1 = itm1;
plugin_data->otm1 = otm1;
""" ;
] ;
swhext:createdBy <http://plugin.org.uk/swh-plugins/toTurtle.xsl> .
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