/usr/include/speech_tools/base_class/EST_TTimeIndex.cc is in libestools-dev 1:2.4~release-5+b3.
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/* */
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/*************************************************************************/
/* */
/* Author: Richard Caley (rjc@cstr.ed.ac.uk) */
/* Date: Wed Mar 25 1998 */
/* -------------------------------------------------------------------- */
/* Indexing a container by time. */
/* */
/*************************************************************************/
#include "EST_TTimeIndex.h"
template<class CONTAINER>
void EST_TTimeIndex<CONTAINER>::initialise()
{
p_time_step=0;
p_entries.resize(0);
}
template<class CONTAINER>
EST_TTimeIndex<CONTAINER>::EST_TTimeIndex()
{
initialise();
}
template<class CONTAINER>
EST_TTimeIndex<CONTAINER>::EST_TTimeIndex(CONTAINER &c, int bunch)
{
initialise();
index(c, bunch);
}
template<class CONTAINER>
void EST_TTimeIndex<CONTAINER>::index(CONTAINER &c, int bunch)
{
int n_objects = c.length();
float total_time = c.end();
int n_buckets = n_objects/bunch +1;
p_time_step = total_time / n_buckets;
p_entries.resize(n_buckets);
p_container = &c;
Index i;
i=c.first_index();
p_entries[0].t = 0.0;
p_entries[0].i = i;
for(; c.valid_index(i); i=c.next_index(i))
{
float t = c.time_of(i);
int b = (int)(t/p_time_step);
if (b>=p_entries.num_columns())
b = p_entries.num_columns()-1;
for (int bb=b+1; bb < n_buckets ; bb++)
if ( t > p_entries(bb).t )
{
p_entries[bb].t = t;
p_entries[bb].i = i;
}
else
break;
}
}
template<class CONTAINER>
void EST_TTimeIndex<CONTAINER>::just_before(float t,
void *inp) const
{
CONTAINER::Index &in(*(Index *)inp);
in= CONTAINER::bad_index();
if (p_container==NULL)
return;
int b = (int)(t/p_time_step);
if (b>=p_entries.num_columns())
b = p_entries.num_columns()-1;
Index i = p_entries(b).i;
for(Index j=i; p_container->valid_index(j); j = p_container->next_index(j))
{
if (p_container->time_of(j) > t)
{
in=i;
return;
}
i=j;
}
in =i;
return;
}
template<class CONTAINER>
int operator !=(const EST_TTI_Entry<CONTAINER> &e1,
const EST_TTI_Entry<CONTAINER> &e2)
{ (void)e1; (void)e2; return 1; }
template<class CONTAINER>
ostream& operator <<(ostream &s,
const EST_TTI_Entry<CONTAINER> &e)
{ (void)e; return s << "entry"; }
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