This file is indexed.

/usr/lib/lv2/hilbert-swh.lv2/plugin.ttl is in swh-lv2 1.0.15+git20151104~repack0-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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@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:hilbert a :Plugin ;
   a :AnalyserPlugin ;

   doap:name "Hilbert transformer" ;
   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#hilbert> ;

   :pluginProperty :hardRtCapable ;
    
   :port [
     a :InputPort, :AudioPort ;
     :name "Input" ;
     :index 0 ;
     :symbol "input" ;
   ] ;
  
   :port [
     a :OutputPort, :AudioPort ;
     :name "0deg output" ;
     :index 1 ;
     :symbol "output0" ;
   ] ;
  
   :port [
     a :OutputPort, :AudioPort ;
     :name "90deg output" ;
     :index 2 ;
     :symbol "output90" ;
   ] ;
  
   :port [
     a :OutputPort, :ControlPort ;
     :name "latency" ;
     :index 3 ;
     :symbol "latency" ;
     :portProperty :reportsLatency ;
   ] ;
  
   swhext:code """
#include "ladspa-util.h"

#define D_SIZE 256
#define NZEROS 200

/* The non-zero taps of the Hilbert transformer */
static float xcoeffs[] = {
     +0.0008103736f, +0.0008457886f, +0.0009017196f, +0.0009793364f,
     +0.0010798341f, +0.0012044365f, +0.0013544008f, +0.0015310235f,
     +0.0017356466f, +0.0019696659f, +0.0022345404f, +0.0025318040f,
     +0.0028630784f, +0.0032300896f, +0.0036346867f, +0.0040788644f,
     +0.0045647903f, +0.0050948365f, +0.0056716186f, +0.0062980419f,
     +0.0069773575f, +0.0077132300f, +0.0085098208f, +0.0093718901f,
     +0.0103049226f, +0.0113152847f, +0.0124104218f, +0.0135991079f,
     +0.0148917649f, +0.0163008758f, +0.0178415242f, +0.0195321089f,
     +0.0213953037f, +0.0234593652f, +0.0257599469f, +0.0283426636f,
     +0.0312667947f, +0.0346107648f, +0.0384804823f, +0.0430224431f,
     +0.0484451086f, +0.0550553725f, +0.0633242001f, +0.0740128560f,
     +0.0884368322f, +0.1090816773f, +0.1412745301f, +0.1988673273f,
     +0.3326528346f, +0.9997730178f, -0.9997730178f, -0.3326528346f,
     -0.1988673273f, -0.1412745301f, -0.1090816773f, -0.0884368322f,
     -0.0740128560f, -0.0633242001f, -0.0550553725f, -0.0484451086f,
     -0.0430224431f, -0.0384804823f, -0.0346107648f, -0.0312667947f,
     -0.0283426636f, -0.0257599469f, -0.0234593652f, -0.0213953037f,
     -0.0195321089f, -0.0178415242f, -0.0163008758f, -0.0148917649f,
     -0.0135991079f, -0.0124104218f, -0.0113152847f, -0.0103049226f,
     -0.0093718901f, -0.0085098208f, -0.0077132300f, -0.0069773575f,
     -0.0062980419f, -0.0056716186f, -0.0050948365f, -0.0045647903f,
     -0.0040788644f, -0.0036346867f, -0.0032300896f, -0.0028630784f,
     -0.0025318040f, -0.0022345404f, -0.0019696659f, -0.0017356466f,
     -0.0015310235f, -0.0013544008f, -0.0012044365f, -0.0010798341f,
     -0.0009793364f, -0.0009017196f, -0.0008457886f, -0.0008103736f,
};
    """ ;

   swhext:callback [
     swhext:event "instantiate" ;
     swhext:code """
      delay = calloc(D_SIZE, sizeof(LADSPA_Data));

      dptr = 0;
    """ ;
   ] ;
  
   swhext:callback [
     swhext:event "cleanup" ;
     swhext:code """
      free(plugin_data->delay);
    """ ;
   ] ;
  
   swhext:callback [
     swhext:event "run" ;
     swhext:code """
      unsigned long pos;
      unsigned int i;
      float hilb;

      for (pos = 0; pos < sample_count; pos++) {
	delay[dptr] = input[pos];
	hilb = 0.0f;
	for (i = 0; i < NZEROS/2; i++) {
	  hilb += (xcoeffs[i] * delay[(dptr - i*2) & (D_SIZE - 1)]);
	}
        buffer_write(output0[pos], delay[(dptr - 99) & (D_SIZE - 1)]);
        buffer_write(output90[pos], hilb);
	dptr = (dptr + 1) & (D_SIZE - 1);
      }

      plugin_data->dptr = dptr;

      *(plugin_data->latency) = 99;
    """ ;
   ] ;
  
   swhext:createdBy <http://plugin.org.uk/swh-plugins/toTurtle.xsl> .