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-rw-r--r--media/pocketsphinx/src/s2_semi_mgau.c1356
1 files changed, 0 insertions, 1356 deletions
diff --git a/media/pocketsphinx/src/s2_semi_mgau.c b/media/pocketsphinx/src/s2_semi_mgau.c
deleted file mode 100644
index 2e0664dd9..000000000
--- a/media/pocketsphinx/src/s2_semi_mgau.c
+++ /dev/null
@@ -1,1356 +0,0 @@
-/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
-/* ====================================================================
- * Copyright (c) 1999-2004 Carnegie Mellon University. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * This work was supported in part by funding from the Defense Advanced
- * Research Projects Agency and the National Science Foundation of the
- * United States of America, and the CMU Sphinx Speech Consortium.
- *
- * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
- * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
- * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * ====================================================================
- *
- */
-
-/* System headers */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include <limits.h>
-#include <math.h>
-#if defined(__ADSPBLACKFIN__)
-#elif !defined(_WIN32_WCE)
-#include <sys/types.h>
-#endif
-
-/* SphinxBase headers */
-#include <sphinx_config.h>
-#include <sphinxbase/cmd_ln.h>
-#include <sphinxbase/fixpoint.h>
-#include <sphinxbase/ckd_alloc.h>
-#include <sphinxbase/bio.h>
-#include <sphinxbase/err.h>
-#include <sphinxbase/prim_type.h>
-
-/* Local headers */
-#include "s2_semi_mgau.h"
-#include "tied_mgau_common.h"
-
-static ps_mgaufuncs_t s2_semi_mgau_funcs = {
- "s2_semi",
- s2_semi_mgau_frame_eval, /* frame_eval */
- s2_semi_mgau_mllr_transform, /* transform */
- s2_semi_mgau_free /* free */
-};
-
-struct vqFeature_s {
- int32 score; /* score or distance */
- int32 codeword; /* codeword (vector index) */
-};
-
-static void
-eval_topn(s2_semi_mgau_t *s, int32 feat, mfcc_t *z)
-{
- int i, ceplen;
- vqFeature_t *topn;
-
- topn = s->f[feat];
- ceplen = s->g->featlen[feat];
-
- for (i = 0; i < s->max_topn; i++) {
- mfcc_t *mean, diff, sqdiff, compl; /* diff, diff^2, component likelihood */
- vqFeature_t vtmp;
- mfcc_t *var, d;
- mfcc_t *obs;
- int32 cw, j;
-
- cw = topn[i].codeword;
- mean = s->g->mean[0][feat][0] + cw * ceplen;
- var = s->g->var[0][feat][0] + cw * ceplen;
- d = s->g->det[0][feat][cw];
- obs = z;
- for (j = 0; j < ceplen; j++) {
- diff = *obs++ - *mean++;
- sqdiff = MFCCMUL(diff, diff);
- compl = MFCCMUL(sqdiff, *var);
- d = GMMSUB(d, compl);
- ++var;
- }
- topn[i].score = (int32)d;
- if (i == 0)
- continue;
- vtmp = topn[i];
- for (j = i - 1; j >= 0 && (int32)d > topn[j].score; j--) {
- topn[j + 1] = topn[j];
- }
- topn[j + 1] = vtmp;
- }
-}
-
-static void
-eval_cb(s2_semi_mgau_t *s, int32 feat, mfcc_t *z)
-{
- vqFeature_t *worst, *best, *topn;
- mfcc_t *mean;
- mfcc_t *var, *det, *detP, *detE;
- int32 i, ceplen;
-
- best = topn = s->f[feat];
- worst = topn + (s->max_topn - 1);
- mean = s->g->mean[0][feat][0];
- var = s->g->var[0][feat][0];
- det = s->g->det[0][feat];
- detE = det + s->g->n_density;
- ceplen = s->g->featlen[feat];
-
- for (detP = det; detP < detE; ++detP) {
- mfcc_t diff, sqdiff, compl; /* diff, diff^2, component likelihood */
- mfcc_t d;
- mfcc_t *obs;
- vqFeature_t *cur;
- int32 cw, j;
-
- d = *detP;
- obs = z;
- cw = (int)(detP - det);
- for (j = 0; (j < ceplen) && (d >= worst->score); ++j) {
- diff = *obs++ - *mean++;
- sqdiff = MFCCMUL(diff, diff);
- compl = MFCCMUL(sqdiff, *var);
- d = GMMSUB(d, compl);
- ++var;
- }
- if (j < ceplen) {
- /* terminated early, so not in topn */
- mean += (ceplen - j);
- var += (ceplen - j);
- continue;
- }
- if ((int32)d < worst->score)
- continue;
- for (i = 0; i < s->max_topn; i++) {
- /* already there, so don't need to insert */
- if (topn[i].codeword == cw)
- break;
- }
- if (i < s->max_topn)
- continue; /* already there. Don't insert */
- /* remaining code inserts codeword and dist in correct spot */
- for (cur = worst - 1; cur >= best && (int32)d >= cur->score; --cur)
- memcpy(cur + 1, cur, sizeof(vqFeature_t));
- ++cur;
- cur->codeword = cw;
- cur->score = (int32)d;
- }
-}
-
-static void
-mgau_dist(s2_semi_mgau_t * s, int32 frame, int32 feat, mfcc_t * z)
-{
- eval_topn(s, feat, z);
-
- /* If this frame is skipped, do nothing else. */
- if (frame % s->ds_ratio)
- return;
-
- /* Evaluate the rest of the codebook (or subset thereof). */
- eval_cb(s, feat, z);
-}
-
-static int
-mgau_norm(s2_semi_mgau_t *s, int feat)
-{
- int32 norm;
- int j;
-
- /* Compute quantized normalizing constant. */
- norm = s->f[feat][0].score >> SENSCR_SHIFT;
-
- /* Normalize the scores, negate them, and clamp their dynamic range. */
- for (j = 0; j < s->max_topn; ++j) {
- s->f[feat][j].score = -((s->f[feat][j].score >> SENSCR_SHIFT) - norm);
- if (s->f[feat][j].score > MAX_NEG_ASCR)
- s->f[feat][j].score = MAX_NEG_ASCR;
- if (s->topn_beam[feat] && s->f[feat][j].score > s->topn_beam[feat])
- break;
- }
- return j;
-}
-
-static int32
-get_scores_8b_feat_6(s2_semi_mgau_t * s, int i,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, l;
- uint8 *pid_cw0, *pid_cw1, *pid_cw2, *pid_cw3, *pid_cw4, *pid_cw5;
-
- pid_cw0 = s->mixw[i][s->f[i][0].codeword];
- pid_cw1 = s->mixw[i][s->f[i][1].codeword];
- pid_cw2 = s->mixw[i][s->f[i][2].codeword];
- pid_cw3 = s->mixw[i][s->f[i][3].codeword];
- pid_cw4 = s->mixw[i][s->f[i][4].codeword];
- pid_cw5 = s->mixw[i][s->f[i][5].codeword];
-
- for (l = j = 0; j < n_senone_active; j++) {
- int sen = senone_active[j] + l;
- int32 tmp = pid_cw0[sen] + s->f[i][0].score;
-
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw1[sen] + s->f[i][1].score);
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw2[sen] + s->f[i][2].score);
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw3[sen] + s->f[i][3].score);
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw4[sen] + s->f[i][4].score);
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw5[sen] + s->f[i][5].score);
-
- senone_scores[sen] += tmp;
- l = sen;
- }
- return 0;
-}
-
-static int32
-get_scores_8b_feat_5(s2_semi_mgau_t * s, int i,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, l;
- uint8 *pid_cw0, *pid_cw1, *pid_cw2, *pid_cw3, *pid_cw4;
-
- pid_cw0 = s->mixw[i][s->f[i][0].codeword];
- pid_cw1 = s->mixw[i][s->f[i][1].codeword];
- pid_cw2 = s->mixw[i][s->f[i][2].codeword];
- pid_cw3 = s->mixw[i][s->f[i][3].codeword];
- pid_cw4 = s->mixw[i][s->f[i][4].codeword];
-
- for (l = j = 0; j < n_senone_active; j++) {
- int sen = senone_active[j] + l;
- int32 tmp = pid_cw0[sen] + s->f[i][0].score;
-
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw1[sen] + s->f[i][1].score);
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw2[sen] + s->f[i][2].score);
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw3[sen] + s->f[i][3].score);
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw4[sen] + s->f[i][4].score);
-
- senone_scores[sen] += tmp;
- l = sen;
- }
- return 0;
-}
-
-static int32
-get_scores_8b_feat_4(s2_semi_mgau_t * s, int i,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, l;
- uint8 *pid_cw0, *pid_cw1, *pid_cw2, *pid_cw3;
-
- pid_cw0 = s->mixw[i][s->f[i][0].codeword];
- pid_cw1 = s->mixw[i][s->f[i][1].codeword];
- pid_cw2 = s->mixw[i][s->f[i][2].codeword];
- pid_cw3 = s->mixw[i][s->f[i][3].codeword];
-
- for (l = j = 0; j < n_senone_active; j++) {
- int sen = senone_active[j] + l;
- int32 tmp = pid_cw0[sen] + s->f[i][0].score;
-
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw1[sen] + s->f[i][1].score);
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw2[sen] + s->f[i][2].score);
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw3[sen] + s->f[i][3].score);
-
- senone_scores[sen] += tmp;
- l = sen;
- }
- return 0;
-}
-
-static int32
-get_scores_8b_feat_3(s2_semi_mgau_t * s, int i,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, l;
- uint8 *pid_cw0, *pid_cw1, *pid_cw2;
-
- pid_cw0 = s->mixw[i][s->f[i][0].codeword];
- pid_cw1 = s->mixw[i][s->f[i][1].codeword];
- pid_cw2 = s->mixw[i][s->f[i][2].codeword];
-
- for (l = j = 0; j < n_senone_active; j++) {
- int sen = senone_active[j] + l;
- int32 tmp = pid_cw0[sen] + s->f[i][0].score;
-
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw1[sen] + s->f[i][1].score);
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw2[sen] + s->f[i][2].score);
-
- senone_scores[sen] += tmp;
- l = sen;
- }
- return 0;
-}
-
-static int32
-get_scores_8b_feat_2(s2_semi_mgau_t * s, int i,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, l;
- uint8 *pid_cw0, *pid_cw1;
-
- pid_cw0 = s->mixw[i][s->f[i][0].codeword];
- pid_cw1 = s->mixw[i][s->f[i][1].codeword];
-
- for (l = j = 0; j < n_senone_active; j++) {
- int sen = senone_active[j] + l;
- int32 tmp = pid_cw0[sen] + s->f[i][0].score;
-
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw1[sen] + s->f[i][1].score);
-
- senone_scores[sen] += tmp;
- l = sen;
- }
- return 0;
-}
-
-static int32
-get_scores_8b_feat_1(s2_semi_mgau_t * s, int i,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, l;
- uint8 *pid_cw0;
-
- pid_cw0 = s->mixw[i][s->f[i][0].codeword];
- for (l = j = 0; j < n_senone_active; j++) {
- int sen = senone_active[j] + l;
- int32 tmp = pid_cw0[sen] + s->f[i][0].score;
- senone_scores[sen] += tmp;
- l = sen;
- }
- return 0;
-}
-
-static int32
-get_scores_8b_feat_any(s2_semi_mgau_t * s, int i, int topn,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, k, l;
-
- for (l = j = 0; j < n_senone_active; j++) {
- int sen = senone_active[j] + l;
- uint8 *pid_cw;
- int32 tmp;
- pid_cw = s->mixw[i][s->f[i][0].codeword];
- tmp = pid_cw[sen] + s->f[i][0].score;
- for (k = 1; k < topn; ++k) {
- pid_cw = s->mixw[i][s->f[i][k].codeword];
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw[sen] + s->f[i][k].score);
- }
- senone_scores[sen] += tmp;
- l = sen;
- }
- return 0;
-}
-
-static int32
-get_scores_8b_feat(s2_semi_mgau_t * s, int i, int topn,
- int16 *senone_scores, uint8 *senone_active, int32 n_senone_active)
-{
- switch (topn) {
- case 6:
- return get_scores_8b_feat_6(s, i, senone_scores,
- senone_active, n_senone_active);
- case 5:
- return get_scores_8b_feat_5(s, i, senone_scores,
- senone_active, n_senone_active);
- case 4:
- return get_scores_8b_feat_4(s, i, senone_scores,
- senone_active, n_senone_active);
- case 3:
- return get_scores_8b_feat_3(s, i, senone_scores,
- senone_active, n_senone_active);
- case 2:
- return get_scores_8b_feat_2(s, i, senone_scores,
- senone_active, n_senone_active);
- case 1:
- return get_scores_8b_feat_1(s, i, senone_scores,
- senone_active, n_senone_active);
- default:
- return get_scores_8b_feat_any(s, i, topn, senone_scores,
- senone_active, n_senone_active);
- }
-}
-
-static int32
-get_scores_8b_feat_all(s2_semi_mgau_t * s, int i, int topn, int16 *senone_scores)
-{
- int32 j, k;
-
- for (j = 0; j < s->n_sen; j++) {
- uint8 *pid_cw;
- int32 tmp;
- pid_cw = s->mixw[i][s->f[i][0].codeword];
- tmp = pid_cw[j] + s->f[i][0].score;
- for (k = 1; k < topn; ++k) {
- pid_cw = s->mixw[i][s->f[i][k].codeword];
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- pid_cw[j] + s->f[i][k].score);
- }
- senone_scores[j] += tmp;
- }
- return 0;
-}
-
-static int32
-get_scores_4b_feat_6(s2_semi_mgau_t * s, int i,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, l;
- uint8 *pid_cw0, *pid_cw1, *pid_cw2, *pid_cw3, *pid_cw4, *pid_cw5;
- uint8 w_den[6][16];
-
- /* Precompute scaled densities. */
- for (j = 0; j < 16; ++j) {
- w_den[0][j] = s->mixw_cb[j] + s->f[i][0].score;
- w_den[1][j] = s->mixw_cb[j] + s->f[i][1].score;
- w_den[2][j] = s->mixw_cb[j] + s->f[i][2].score;
- w_den[3][j] = s->mixw_cb[j] + s->f[i][3].score;
- w_den[4][j] = s->mixw_cb[j] + s->f[i][4].score;
- w_den[5][j] = s->mixw_cb[j] + s->f[i][5].score;
- }
-
- pid_cw0 = s->mixw[i][s->f[i][0].codeword];
- pid_cw1 = s->mixw[i][s->f[i][1].codeword];
- pid_cw2 = s->mixw[i][s->f[i][2].codeword];
- pid_cw3 = s->mixw[i][s->f[i][3].codeword];
- pid_cw4 = s->mixw[i][s->f[i][4].codeword];
- pid_cw5 = s->mixw[i][s->f[i][5].codeword];
-
- for (l = j = 0; j < n_senone_active; j++) {
- int n = senone_active[j] + l;
- int tmp, cw;
-
- if (n & 1) {
- cw = pid_cw0[n/2] >> 4;
- tmp = w_den[0][cw];
- cw = pid_cw1[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[1][cw]);
- cw = pid_cw2[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[2][cw]);
- cw = pid_cw3[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[3][cw]);
- cw = pid_cw4[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[4][cw]);
- cw = pid_cw5[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[5][cw]);
- }
- else {
- cw = pid_cw0[n/2] & 0x0f;
- tmp = w_den[0][cw];
- cw = pid_cw1[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[1][cw]);
- cw = pid_cw2[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[2][cw]);
- cw = pid_cw3[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[3][cw]);
- cw = pid_cw4[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[4][cw]);
- cw = pid_cw5[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[5][cw]);
- }
- senone_scores[n] += tmp;
- l = n;
- }
- return 0;
-}
-
-static int32
-get_scores_4b_feat_5(s2_semi_mgau_t * s, int i,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, l;
- uint8 *pid_cw0, *pid_cw1, *pid_cw2, *pid_cw3, *pid_cw4;
- uint8 w_den[5][16];
-
- /* Precompute scaled densities. */
- for (j = 0; j < 16; ++j) {
- w_den[0][j] = s->mixw_cb[j] + s->f[i][0].score;
- w_den[1][j] = s->mixw_cb[j] + s->f[i][1].score;
- w_den[2][j] = s->mixw_cb[j] + s->f[i][2].score;
- w_den[3][j] = s->mixw_cb[j] + s->f[i][3].score;
- w_den[4][j] = s->mixw_cb[j] + s->f[i][4].score;
- }
-
- pid_cw0 = s->mixw[i][s->f[i][0].codeword];
- pid_cw1 = s->mixw[i][s->f[i][1].codeword];
- pid_cw2 = s->mixw[i][s->f[i][2].codeword];
- pid_cw3 = s->mixw[i][s->f[i][3].codeword];
- pid_cw4 = s->mixw[i][s->f[i][4].codeword];
-
- for (l = j = 0; j < n_senone_active; j++) {
- int n = senone_active[j] + l;
- int tmp, cw;
-
- if (n & 1) {
- cw = pid_cw0[n/2] >> 4;
- tmp = w_den[0][cw];
- cw = pid_cw1[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[1][cw]);
- cw = pid_cw2[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[2][cw]);
- cw = pid_cw3[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[3][cw]);
- cw = pid_cw4[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[4][cw]);
- }
- else {
- cw = pid_cw0[n/2] & 0x0f;
- tmp = w_den[0][cw];
- cw = pid_cw1[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[1][cw]);
- cw = pid_cw2[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[2][cw]);
- cw = pid_cw3[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[3][cw]);
- cw = pid_cw4[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[4][cw]);
- }
- senone_scores[n] += tmp;
- l = n;
- }
- return 0;
-}
-
-static int32
-get_scores_4b_feat_4(s2_semi_mgau_t * s, int i,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, l;
- uint8 *pid_cw0, *pid_cw1, *pid_cw2, *pid_cw3;
- uint8 w_den[4][16];
-
- /* Precompute scaled densities. */
- for (j = 0; j < 16; ++j) {
- w_den[0][j] = s->mixw_cb[j] + s->f[i][0].score;
- w_den[1][j] = s->mixw_cb[j] + s->f[i][1].score;
- w_den[2][j] = s->mixw_cb[j] + s->f[i][2].score;
- w_den[3][j] = s->mixw_cb[j] + s->f[i][3].score;
- }
-
- pid_cw0 = s->mixw[i][s->f[i][0].codeword];
- pid_cw1 = s->mixw[i][s->f[i][1].codeword];
- pid_cw2 = s->mixw[i][s->f[i][2].codeword];
- pid_cw3 = s->mixw[i][s->f[i][3].codeword];
-
- for (l = j = 0; j < n_senone_active; j++) {
- int n = senone_active[j] + l;
- int tmp, cw;
-
- if (n & 1) {
- cw = pid_cw0[n/2] >> 4;
- tmp = w_den[0][cw];
- cw = pid_cw1[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[1][cw]);
- cw = pid_cw2[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[2][cw]);
- cw = pid_cw3[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[3][cw]);
- }
- else {
- cw = pid_cw0[n/2] & 0x0f;
- tmp = w_den[0][cw];
- cw = pid_cw1[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[1][cw]);
- cw = pid_cw2[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[2][cw]);
- cw = pid_cw3[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[3][cw]);
- }
- senone_scores[n] += tmp;
- l = n;
- }
- return 0;
-}
-
-static int32
-get_scores_4b_feat_3(s2_semi_mgau_t * s, int i,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, l;
- uint8 *pid_cw0, *pid_cw1, *pid_cw2;
- uint8 w_den[3][16];
-
- /* Precompute scaled densities. */
- for (j = 0; j < 16; ++j) {
- w_den[0][j] = s->mixw_cb[j] + s->f[i][0].score;
- w_den[1][j] = s->mixw_cb[j] + s->f[i][1].score;
- w_den[2][j] = s->mixw_cb[j] + s->f[i][2].score;
- }
-
- pid_cw0 = s->mixw[i][s->f[i][0].codeword];
- pid_cw1 = s->mixw[i][s->f[i][1].codeword];
- pid_cw2 = s->mixw[i][s->f[i][2].codeword];
-
- for (l = j = 0; j < n_senone_active; j++) {
- int n = senone_active[j] + l;
- int tmp, cw;
-
- if (n & 1) {
- cw = pid_cw0[n/2] >> 4;
- tmp = w_den[0][cw];
- cw = pid_cw1[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[1][cw]);
- cw = pid_cw2[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[2][cw]);
- }
- else {
- cw = pid_cw0[n/2] & 0x0f;
- tmp = w_den[0][cw];
- cw = pid_cw1[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[1][cw]);
- cw = pid_cw2[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[2][cw]);
- }
- senone_scores[n] += tmp;
- l = n;
- }
- return 0;
-}
-
-static int32
-get_scores_4b_feat_2(s2_semi_mgau_t * s, int i,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, l;
- uint8 *pid_cw0, *pid_cw1;
- uint8 w_den[2][16];
-
- /* Precompute scaled densities. */
- for (j = 0; j < 16; ++j) {
- w_den[0][j] = s->mixw_cb[j] + s->f[i][0].score;
- w_den[1][j] = s->mixw_cb[j] + s->f[i][1].score;
- }
-
- pid_cw0 = s->mixw[i][s->f[i][0].codeword];
- pid_cw1 = s->mixw[i][s->f[i][1].codeword];
-
- for (l = j = 0; j < n_senone_active; j++) {
- int n = senone_active[j] + l;
- int tmp, cw;
-
- if (n & 1) {
- cw = pid_cw0[n/2] >> 4;
- tmp = w_den[0][cw];
- cw = pid_cw1[n/2] >> 4;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[1][cw]);
- }
- else {
- cw = pid_cw0[n/2] & 0x0f;
- tmp = w_den[0][cw];
- cw = pid_cw1[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp, w_den[1][cw]);
- }
- senone_scores[n] += tmp;
- l = n;
- }
- return 0;
-}
-
-static int32
-get_scores_4b_feat_1(s2_semi_mgau_t * s, int i,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, l;
- uint8 *pid_cw0;
- uint8 w_den[16];
-
- /* Precompute scaled densities. */
- for (j = 0; j < 16; ++j) {
- w_den[j] = s->mixw_cb[j] + s->f[i][0].score;
- }
-
- pid_cw0 = s->mixw[i][s->f[i][0].codeword];
-
- for (l = j = 0; j < n_senone_active; j++) {
- int n = senone_active[j] + l;
- int tmp, cw;
-
- if (n & 1) {
- cw = pid_cw0[n/2] >> 4;
- tmp = w_den[cw];
- }
- else {
- cw = pid_cw0[n/2] & 0x0f;
- tmp = w_den[cw];
- }
- senone_scores[n] += tmp;
- l = n;
- }
- return 0;
-}
-
-static int32
-get_scores_4b_feat_any(s2_semi_mgau_t * s, int i, int topn,
- int16 *senone_scores, uint8 *senone_active,
- int32 n_senone_active)
-{
- int32 j, k, l;
-
- for (l = j = 0; j < n_senone_active; j++) {
- int n = senone_active[j] + l;
- int tmp, cw;
- uint8 *pid_cw;
-
- pid_cw = s->mixw[i][s->f[i][0].codeword];
- if (n & 1)
- cw = pid_cw[n/2] >> 4;
- else
- cw = pid_cw[n/2] & 0x0f;
- tmp = s->mixw_cb[cw] + s->f[i][0].score;
- for (k = 1; k < topn; ++k) {
- pid_cw = s->mixw[i][s->f[i][k].codeword];
- if (n & 1)
- cw = pid_cw[n/2] >> 4;
- else
- cw = pid_cw[n/2] & 0x0f;
- tmp = fast_logmath_add(s->lmath_8b, tmp,
- s->mixw_cb[cw] + s->f[i][k].score);
- }
- senone_scores[n] += tmp;
- l = n;
- }
- return 0;
-}
-
-static int32
-get_scores_4b_feat(s2_semi_mgau_t * s, int i, int topn,
- int16 *senone_scores, uint8 *senone_active, int32 n_senone_active)
-{
- switch (topn) {
- case 6:
- return get_scores_4b_feat_6(s, i, senone_scores,
- senone_active, n_senone_active);
- case 5:
- return get_scores_4b_feat_5(s, i, senone_scores,
- senone_active, n_senone_active);
- case 4:
- return get_scores_4b_feat_4(s, i, senone_scores,
- senone_active, n_senone_active);
- case 3:
- return get_scores_4b_feat_3(s, i, senone_scores,
- senone_active, n_senone_active);
- case 2:
- return get_scores_4b_feat_2(s, i, senone_scores,
- senone_active, n_senone_active);
- case 1:
- return get_scores_4b_feat_1(s, i, senone_scores,
- senone_active, n_senone_active);
- default:
- return get_scores_4b_feat_any(s, i, topn, senone_scores,
- senone_active, n_senone_active);
- }
-}
-
-static int32
-get_scores_4b_feat_all(s2_semi_mgau_t * s, int i, int topn, int16 *senone_scores)
-{
- int j, last_sen;
-
- j = 0;
- /* Number of senones is always even, but don't overrun if it isn't. */
- last_sen = s->n_sen & ~1;
- while (j < last_sen) {
- uint8 *pid_cw;
- int32 tmp0, tmp1;
- int k;
-
- pid_cw = s->mixw[i][s->f[i][0].codeword];
- tmp0 = s->mixw_cb[pid_cw[j/2] & 0x0f] + s->f[i][0].score;
- tmp1 = s->mixw_cb[pid_cw[j/2] >> 4] + s->f[i][0].score;
- for (k = 1; k < topn; ++k) {
- int32 w_den0, w_den1;
-
- pid_cw = s->mixw[i][s->f[i][k].codeword];
- w_den0 = s->mixw_cb[pid_cw[j/2] & 0x0f] + s->f[i][k].score;
- w_den1 = s->mixw_cb[pid_cw[j/2] >> 4] + s->f[i][k].score;
- tmp0 = fast_logmath_add(s->lmath_8b, tmp0, w_den0);
- tmp1 = fast_logmath_add(s->lmath_8b, tmp1, w_den1);
- }
- senone_scores[j++] += tmp0;
- senone_scores[j++] += tmp1;
- }
- return 0;
-}
-
-/*
- * Compute senone scores for the active senones.
- */
-int32
-s2_semi_mgau_frame_eval(ps_mgau_t *ps,
- int16 *senone_scores,
- uint8 *senone_active,
- int32 n_senone_active,
- mfcc_t ** featbuf, int32 frame,
- int32 compallsen)
-{
- s2_semi_mgau_t *s = (s2_semi_mgau_t *)ps;
- int i, topn_idx;
- int n_feat = s->g->n_feat;
-
- memset(senone_scores, 0, s->n_sen * sizeof(*senone_scores));
- /* No bounds checking is done here, which just means you'll get
- * semi-random crap if you request a frame in the future or one
- * that's too far in the past. */
- topn_idx = frame % s->n_topn_hist;
- s->f = s->topn_hist[topn_idx];
- for (i = 0; i < n_feat; ++i) {
- /* For past frames this will already be computed. */
- if (frame >= ps_mgau_base(ps)->frame_idx) {
- vqFeature_t **lastf;
- if (topn_idx == 0)
- lastf = s->topn_hist[s->n_topn_hist-1];
- else
- lastf = s->topn_hist[topn_idx-1];
- memcpy(s->f[i], lastf[i], sizeof(vqFeature_t) * s->max_topn);
- mgau_dist(s, frame, i, featbuf[i]);
- s->topn_hist_n[topn_idx][i] = mgau_norm(s, i);
- }
- if (s->mixw_cb) {
- if (compallsen)
- get_scores_4b_feat_all(s, i, s->topn_hist_n[topn_idx][i], senone_scores);
- else
- get_scores_4b_feat(s, i, s->topn_hist_n[topn_idx][i], senone_scores,
- senone_active, n_senone_active);
- }
- else {
- if (compallsen)
- get_scores_8b_feat_all(s, i, s->topn_hist_n[topn_idx][i], senone_scores);
- else
- get_scores_8b_feat(s, i, s->topn_hist_n[topn_idx][i], senone_scores,
- senone_active, n_senone_active);
- }
- }
-
- return 0;
-}
-
-static int32
-read_sendump(s2_semi_mgau_t *s, bin_mdef_t *mdef, char const *file)
-{
- FILE *fp;
- char line[1000];
- int32 i, n, r, c;
- int32 do_swap, do_mmap;
- size_t offset;
- int n_clust = 0;
- int n_feat = s->g->n_feat;
- int n_density = s->g->n_density;
- int n_sen = bin_mdef_n_sen(mdef);
- int n_bits = 8;
-
- s->n_sen = n_sen; /* FIXME: Should have been done earlier */
- do_mmap = cmd_ln_boolean_r(s->config, "-mmap");
-
- if ((fp = fopen(file, "rb")) == NULL)
- return -1;
-
- E_INFO("Loading senones from dump file %s\n", file);
- /* Read title size, title */
- if (fread(&n, sizeof(int32), 1, fp) != 1) {
- E_ERROR_SYSTEM("Failed to read title size from %s", file);
- goto error_out;
- }
- /* This is extremely bogus */
- do_swap = 0;
- if (n < 1 || n > 999) {
- SWAP_INT32(&n);
- if (n < 1 || n > 999) {
- E_ERROR("Title length %x in dump file %s out of range\n", n, file);
- goto error_out;
- }
- do_swap = 1;
- }
- if (fread(line, sizeof(char), n, fp) != n) {
- E_ERROR_SYSTEM("Cannot read title");
- goto error_out;
- }
- if (line[n - 1] != '\0') {
- E_ERROR("Bad title in dump file\n");
- goto error_out;
- }
- E_INFO("%s\n", line);
-
- /* Read header size, header */
- if (fread(&n, sizeof(n), 1, fp) != 1) {
- E_ERROR_SYSTEM("Failed to read header size from %s", file);
- goto error_out;
- }
- if (do_swap) SWAP_INT32(&n);
- if (fread(line, sizeof(char), n, fp) != n) {
- E_ERROR_SYSTEM("Cannot read header");
- goto error_out;
- }
- if (line[n - 1] != '\0') {
- E_ERROR("Bad header in dump file\n");
- goto error_out;
- }
-
- /* Read other header strings until string length = 0 */
- for (;;) {
- if (fread(&n, sizeof(n), 1, fp) != 1) {
- E_ERROR_SYSTEM("Failed to read header string size from %s", file);
- goto error_out;
- }
- if (do_swap) SWAP_INT32(&n);
- if (n == 0)
- break;
- if (fread(line, sizeof(char), n, fp) != n) {
- E_ERROR_SYSTEM("Cannot read header");
- goto error_out;
- }
- /* Look for a cluster count, if present */
- if (!strncmp(line, "feature_count ", strlen("feature_count "))) {
- n_feat = atoi(line + strlen("feature_count "));
- }
- if (!strncmp(line, "mixture_count ", strlen("mixture_count "))) {
- n_density = atoi(line + strlen("mixture_count "));
- }
- if (!strncmp(line, "model_count ", strlen("model_count "))) {
- n_sen = atoi(line + strlen("model_count "));
- }
- if (!strncmp(line, "cluster_count ", strlen("cluster_count "))) {
- n_clust = atoi(line + strlen("cluster_count "));
- }
- if (!strncmp(line, "cluster_bits ", strlen("cluster_bits "))) {
- n_bits = atoi(line + strlen("cluster_bits "));
- }
- }
-
- /* Defaults for #rows, #columns in mixw array. */
- c = n_sen;
- r = n_density;
- if (n_clust == 0) {
- /* Older mixw files have them here, and they might be padded. */
- if (fread(&r, sizeof(r), 1, fp) != 1) {
- E_ERROR_SYSTEM("Cannot read #rows");
- goto error_out;
- }
- if (do_swap) SWAP_INT32(&r);
- if (fread(&c, sizeof(c), 1, fp) != 1) {
- E_ERROR_SYSTEM("Cannot read #columns");
- goto error_out;
- }
- if (do_swap) SWAP_INT32(&c);
- E_INFO("Rows: %d, Columns: %d\n", r, c);
- }
-
- if (n_feat != s->g->n_feat) {
- E_ERROR("Number of feature streams mismatch: %d != %d\n",
- n_feat, s->g->n_feat);
- goto error_out;
- }
- if (n_density != s->g->n_density) {
- E_ERROR("Number of densities mismatch: %d != %d\n",
- n_density, s->g->n_density);
- goto error_out;
- }
- if (n_sen != s->n_sen) {
- E_ERROR("Number of senones mismatch: %d != %d\n",
- n_sen, s->n_sen);
- goto error_out;
- }
-
- if (!((n_clust == 0) || (n_clust == 15) || (n_clust == 16))) {
- E_ERROR("Cluster count must be 0, 15, or 16\n");
- goto error_out;
- }
- if (n_clust == 15)
- ++n_clust;
-
- if (!((n_bits == 8) || (n_bits == 4))) {
- E_ERROR("Cluster count must be 4 or 8\n");
- goto error_out;
- }
-
- if (do_mmap) {
- E_INFO("Using memory-mapped I/O for senones\n");
- }
- offset = ftell(fp);
-
- /* Allocate memory for pdfs (or memory map them) */
- if (do_mmap) {
- s->sendump_mmap = mmio_file_read(file);
- /* Get cluster codebook if any. */
- if (n_clust) {
- s->mixw_cb = ((uint8 *) mmio_file_ptr(s->sendump_mmap)) + offset;
- offset += n_clust;
- }
- }
- else {
- /* Get cluster codebook if any. */
- if (n_clust) {
- s->mixw_cb = ckd_calloc(1, n_clust);
- if (fread(s->mixw_cb, 1, n_clust, fp) != (size_t) n_clust) {
- E_ERROR("Failed to read %d bytes from sendump\n", n_clust);
- goto error_out;
- }
- }
- }
-
- /* Set up pointers, or read, or whatever */
- if (s->sendump_mmap) {
- s->mixw = ckd_calloc_2d(n_feat, n_density, sizeof(*s->mixw));
- for (n = 0; n < n_feat; n++) {
- int step = c;
- if (n_bits == 4)
- step = (step + 1) / 2;
- for (i = 0; i < r; i++) {
- s->mixw[n][i] = ((uint8 *) mmio_file_ptr(s->sendump_mmap)) + offset;
- offset += step;
- }
- }
- }
- else {
- s->mixw = ckd_calloc_3d(n_feat, n_density, n_sen, sizeof(***s->mixw));
- /* Read pdf values and ids */
- for (n = 0; n < n_feat; n++) {
- int step = c;
- if (n_bits == 4)
- step = (step + 1) / 2;
- for (i = 0; i < r; i++) {
- if (fread(s->mixw[n][i], sizeof(***s->mixw), step, fp)
- != (size_t) step) {
- E_ERROR("Failed to read %d bytes from sendump\n", step);
- goto error_out;
- }
- }
- }
- }
-
- fclose(fp);
- return 0;
-error_out:
- fclose(fp);
- return -1;
-}
-
-static int32
-read_mixw(s2_semi_mgau_t * s, char const *file_name, double SmoothMin)
-{
- char **argname, **argval;
- char eofchk;
- FILE *fp;
- int32 byteswap, chksum_present;
- uint32 chksum;
- float32 *pdf;
- int32 i, f, c, n;
- int32 n_sen;
- int32 n_feat;
- int32 n_comp;
- int32 n_err;
-
- E_INFO("Reading mixture weights file '%s'\n", file_name);
-
- if ((fp = fopen(file_name, "rb")) == NULL)
- E_FATAL_SYSTEM("Failed to open mixture weights file '%s' for reading", file_name);
-
- /* Read header, including argument-value info and 32-bit byteorder magic */
- if (bio_readhdr(fp, &argname, &argval, &byteswap) < 0)
- E_FATAL("Failed to read header from file '%s'\n", file_name);
-
- /* Parse argument-value list */
- chksum_present = 0;
- for (i = 0; argname[i]; i++) {
- if (strcmp(argname[i], "version") == 0) {
- if (strcmp(argval[i], MGAU_MIXW_VERSION) != 0)
- E_WARN("Version mismatch(%s): %s, expecting %s\n",
- file_name, argval[i], MGAU_MIXW_VERSION);
- }
- else if (strcmp(argname[i], "chksum0") == 0) {
- chksum_present = 1; /* Ignore the associated value */
- }
- }
- bio_hdrarg_free(argname, argval);
- argname = argval = NULL;
-
- chksum = 0;
-
- /* Read #senones, #features, #codewords, arraysize */
- if ((bio_fread(&n_sen, sizeof(int32), 1, fp, byteswap, &chksum) != 1)
- || (bio_fread(&n_feat, sizeof(int32), 1, fp, byteswap, &chksum) !=
- 1)
- || (bio_fread(&n_comp, sizeof(int32), 1, fp, byteswap, &chksum) !=
- 1)
- || (bio_fread(&n, sizeof(int32), 1, fp, byteswap, &chksum) != 1)) {
- E_FATAL("bio_fread(%s) (arraysize) failed\n", file_name);
- }
- if (n_feat != s->g->n_feat)
- E_FATAL("#Features streams(%d) != %d\n", n_feat, s->g->n_feat);
- if (n != n_sen * n_feat * n_comp) {
- E_FATAL
- ("%s: #float32s(%d) doesn't match header dimensions: %d x %d x %d\n",
- file_name, i, n_sen, n_feat, n_comp);
- }
-
- /* n_sen = number of mixture weights per codeword, which is
- * fixed at the number of senones since we have only one codebook.
- */
- s->n_sen = n_sen;
-
- /* Quantized mixture weight arrays. */
- s->mixw = ckd_calloc_3d(n_feat, s->g->n_density, n_sen, sizeof(***s->mixw));
-
- /* Temporary structure to read in floats before conversion to (int32) logs3 */
- pdf = (float32 *) ckd_calloc(n_comp, sizeof(float32));
-
- /* Read senone probs data, normalize, floor, convert to logs3, truncate to 8 bits */
- n_err = 0;
- for (i = 0; i < n_sen; i++) {
- for (f = 0; f < n_feat; f++) {
- if (bio_fread((void *) pdf, sizeof(float32),
- n_comp, fp, byteswap, &chksum) != n_comp) {
- E_FATAL("bio_fread(%s) (arraydata) failed\n", file_name);
- }
-
- /* Normalize and floor */
- if (vector_sum_norm(pdf, n_comp) <= 0.0)
- n_err++;
- vector_floor(pdf, n_comp, SmoothMin);
- vector_sum_norm(pdf, n_comp);
-
- /* Convert to LOG, quantize, and transpose */
- for (c = 0; c < n_comp; c++) {
- int32 qscr;
-
- qscr = -logmath_log(s->lmath_8b, pdf[c]);
- if ((qscr > MAX_NEG_MIXW) || (qscr < 0))
- qscr = MAX_NEG_MIXW;
- s->mixw[f][c][i] = qscr;
- }
- }
- }
- if (n_err > 0)
- E_WARN("Weight normalization failed for %d mixture weights components\n", n_err);
-
- ckd_free(pdf);
-
- if (chksum_present)
- bio_verify_chksum(fp, byteswap, chksum);
-
- if (fread(&eofchk, 1, 1, fp) == 1)
- E_FATAL("More data than expected in %s\n", file_name);
-
- fclose(fp);
-
- E_INFO("Read %d x %d x %d mixture weights\n", n_sen, n_feat, n_comp);
- return n_sen;
-}
-
-
-static int
-split_topn(char const *str, uint8 *out, int nfeat)
-{
- char *topn_list = ckd_salloc(str);
- char *c, *cc;
- int i, maxn;
-
- c = topn_list;
- i = 0;
- maxn = 0;
- while (i < nfeat && (cc = strchr(c, ',')) != NULL) {
- *cc = '\0';
- out[i] = atoi(c);
- if (out[i] > maxn) maxn = out[i];
- c = cc + 1;
- ++i;
- }
- if (i < nfeat && *c != '\0') {
- out[i] = atoi(c);
- if (out[i] > maxn) maxn = out[i];
- ++i;
- }
- while (i < nfeat)
- out[i++] = maxn;
-
- ckd_free(topn_list);
- return maxn;
-}
-
-
-ps_mgau_t *
-s2_semi_mgau_init(acmod_t *acmod)
-{
- s2_semi_mgau_t *s;
- ps_mgau_t *ps;
- char const *sendump_path;
- int i;
- int n_feat;
-
- s = ckd_calloc(1, sizeof(*s));
- s->config = acmod->config;
-
- s->lmath = logmath_retain(acmod->lmath);
- /* Log-add table. */
- s->lmath_8b = logmath_init(logmath_get_base(acmod->lmath), SENSCR_SHIFT, TRUE);
- if (s->lmath_8b == NULL)
- goto error_out;
- /* Ensure that it is only 8 bits wide so that fast_logmath_add() works. */
- if (logmath_get_width(s->lmath_8b) != 1) {
- E_ERROR("Log base %f is too small to represent add table in 8 bits\n",
- logmath_get_base(s->lmath_8b));
- goto error_out;
- }
-
- /* Read means and variances. */
- if ((s->g = gauden_init(cmd_ln_str_r(s->config, "-mean"),
- cmd_ln_str_r(s->config, "-var"),
- cmd_ln_float32_r(s->config, "-varfloor"),
- s->lmath)) == NULL)
- goto error_out;
- /* Currently only a single codebook is supported. */
- if (s->g->n_mgau != 1)
- goto error_out;
-
- n_feat = s->g->n_feat;
-
- /* Verify n_feat and veclen, against acmod. */
- if (n_feat != feat_dimension1(acmod->fcb)) {
- E_ERROR("Number of streams does not match: %d != %d\n",
- n_feat, feat_dimension1(acmod->fcb));
- goto error_out;
- }
- for (i = 0; i < n_feat; ++i) {
- if (s->g->featlen[i] != feat_dimension2(acmod->fcb, i)) {
- E_ERROR("Dimension of stream %d does not match: %d != %d\n",
- i, s->g->featlen[i], feat_dimension2(acmod->fcb, i));
- goto error_out;
- }
- }
- /* Read mixture weights */
- if ((sendump_path = cmd_ln_str_r(s->config, "-sendump"))) {
- if (read_sendump(s, acmod->mdef, sendump_path) < 0) {
- goto error_out;
- }
- }
- else {
- if (read_mixw(s, cmd_ln_str_r(s->config, "-mixw"),
- cmd_ln_float32_r(s->config, "-mixwfloor")) < 0) {
- goto error_out;
- }
- }
- s->ds_ratio = cmd_ln_int32_r(s->config, "-ds");
-
- /* Determine top-N for each feature */
- s->topn_beam = ckd_calloc(n_feat, sizeof(*s->topn_beam));
- s->max_topn = cmd_ln_int32_r(s->config, "-topn");
- split_topn(cmd_ln_str_r(s->config, "-topn_beam"), s->topn_beam, n_feat);
- E_INFO("Maximum top-N: %d ", s->max_topn);
- E_INFOCONT("Top-N beams:");
- for (i = 0; i < n_feat; ++i) {
- E_INFOCONT(" %d", s->topn_beam[i]);
- }
- E_INFOCONT("\n");
-
- /* Top-N scores from recent frames */
- s->n_topn_hist = cmd_ln_int32_r(s->config, "-pl_window") + 2;
- s->topn_hist = (vqFeature_t ***)
- ckd_calloc_3d(s->n_topn_hist, n_feat, s->max_topn,
- sizeof(***s->topn_hist));
- s->topn_hist_n = ckd_calloc_2d(s->n_topn_hist, n_feat,
- sizeof(**s->topn_hist_n));
- for (i = 0; i < s->n_topn_hist; ++i) {
- int j;
- for (j = 0; j < n_feat; ++j) {
- int k;
- for (k = 0; k < s->max_topn; ++k) {
- s->topn_hist[i][j][k].score = WORST_DIST;
- s->topn_hist[i][j][k].codeword = k;
- }
- }
- }
-
- ps = (ps_mgau_t *)s;
- ps->vt = &s2_semi_mgau_funcs;
- return ps;
-error_out:
- s2_semi_mgau_free(ps_mgau_base(s));
- return NULL;
-}
-
-int
-s2_semi_mgau_mllr_transform(ps_mgau_t *ps,
- ps_mllr_t *mllr)
-{
- s2_semi_mgau_t *s = (s2_semi_mgau_t *)ps;
- return gauden_mllr_transform(s->g, mllr, s->config);
-}
-
-void
-s2_semi_mgau_free(ps_mgau_t *ps)
-{
- s2_semi_mgau_t *s = (s2_semi_mgau_t *)ps;
-
- logmath_free(s->lmath);
- logmath_free(s->lmath_8b);
- if (s->sendump_mmap) {
- ckd_free_2d(s->mixw);
- mmio_file_unmap(s->sendump_mmap);
- }
- else {
- ckd_free_3d(s->mixw);
- if (s->mixw_cb)
- ckd_free(s->mixw_cb);
- }
- gauden_free(s->g);
- ckd_free(s->topn_beam);
- ckd_free_2d(s->topn_hist_n);
- ckd_free_3d((void **)s->topn_hist);
- ckd_free(s);
-}