view accumulator_test.cpp @ 659:536cfa209e7f

Sampling enhancements

Allow specification of a key with -k for doing sampling between a single
datum and the rest of the database.  (The implementation is slightly
icky, as mentioned in the previous commit message; hopefully this
situation will not remain for too long).

While we're at it, allow -r/--resultlength as a synonym for --nsamples
(if --nsamples is not given) in order better to reflect the analogy
between querying and sampling.

#include "audioDB.h"
extern "C" {
#include "audioDB_API.h"
}
#include "audioDB-internals.h"

#include "accumulators.h"

static NearestAccumulator<adb_result_dist_lt> *foo = new NearestAccumulator<adb_result_dist_lt>();

int main() {
  adb_result_t r;
  r.key = "hello";
  r.ipos = 0;
  r.qpos = 0;
  r.dist = 3;
  foo->add_point(&r);
  r.ipos = 1;
  r.dist = 2;
  foo->add_point(&r);
  r.qpos = 1;
  foo->add_point(&r);

  adb_query_results_t *rs;
  rs = foo->get_points();
  for (unsigned int k = 0; k < rs->nresults; k++) {
    r = rs->results[k];
    printf("%s: %f %u %u\n", r.key, r.dist, r.qpos, r.ipos);
  }
  free(rs->results);
  free(rs);
  delete foo;
  return 1;
}