/usr/lib/lv2/latency-swh.lv2/plugin.ttl is in swh-lv2 1.0.16+git20160519~repack0-3.
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 | @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:artificialLatency a :Plugin ;
a :UtilityPlugin ;
doap:name "Artificial latency" ;
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#artificialLatency> ;
:pluginProperty :hardRtCapable ;
:port [
a :InputPort, :ControlPort ;
:name "Delay (ms)" ;
:index 0 ;
:symbol "delay" ;
:minimum 0 ;
:maximum 10000 ;
:default 2500 ;
] ;
:port [
a :InputPort, :AudioPort ;
:name "Input" ;
:index 1 ;
:symbol "input" ;
] ;
:port [
a :OutputPort, :AudioPort ;
:name "Output" ;
:index 2 ;
:symbol "output" ;
] ;
:port [
a :OutputPort, :ControlPort ;
:name "latency" ;
:index 3 ;
:symbol "latency" ;
:portProperty :reportsLatency ;
] ;
swhext:code """
#include "ladspa-util.h"
""" ;
swhext:callback [
swhext:event "instantiate" ;
swhext:code """
fs = s_rate;
""" ;
] ;
swhext:callback [
swhext:event "run" ;
swhext:code """
unsigned long pos;
const int delay_fr = f_round(delay * 0.001 * fs);
if (input != output) {
for (pos = 0; pos < sample_count; pos++) {
buffer_write(output[pos], input[pos]);
}
}
*(plugin_data->latency) = (float)delay_fr;
""" ;
] ;
swhext:createdBy <http://plugin.org.uk/swh-plugins/toTurtle.xsl> .
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