diff options
Diffstat (limited to 'pjmedia/src/pjmedia-codec/speex/vq.c')
| -rw-r--r-- | pjmedia/src/pjmedia-codec/speex/vq.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/pjmedia/src/pjmedia-codec/speex/vq.c b/pjmedia/src/pjmedia-codec/speex/vq.c deleted file mode 100644 index d40133f3..00000000 --- a/pjmedia/src/pjmedia-codec/speex/vq.c +++ /dev/null @@ -1,170 +0,0 @@ -/* Copyright (C) 2002 Jean-Marc Valin - File: vq.c - Vector quantization - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - - - Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - - - 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. - - - Neither the name of the Xiph.org Foundation nor the names of its - contributors may be used to endorse or promote products derived from - this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - ``AS IS'' AND ANY EXPRESS 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 THE FOUNDATION OR - CONTRIBUTORS 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. -*/ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "vq.h" -#include "stack_alloc.h" -#include "misc.h" - -#ifdef _USE_SSE -#include <xmmintrin.h> -#include "vq_sse.h" -#elif defined(SHORTCUTS) && (defined(ARM4_ASM) || defined(ARM5E_ASM)) -#include "vq_arm4.h" -#elif defined(BFIN_ASM) -#include "vq_bfin.h" -#endif - - -int scal_quant(spx_word16_t in, const spx_word16_t *boundary, int entries) -{ - int i=0; - while (i<entries-1 && in>boundary[0]) - { - boundary++; - i++; - } - return i; -} - -int scal_quant32(spx_word32_t in, const spx_word32_t *boundary, int entries) -{ - int i=0; - while (i<entries-1 && in>boundary[0]) - { - boundary++; - i++; - } - return i; -} - -/*Finds the index of the entry in a codebook that best matches the input*/ -int vq_index(float *in, const float *codebook, int len, int entries) -{ - int i,j; - float min_dist=0; - int best_index=0; - for (i=0;i<entries;i++) - { - float dist=0; - for (j=0;j<len;j++) - { - float tmp = in[j]-*codebook++; - dist += tmp*tmp; - } - if (i==0 || dist<min_dist) - { - min_dist=dist; - best_index=i; - } - } - return best_index; -} - - -#ifndef OVERRIDE_VQ_NBEST -/*Finds the indices of the n-best entries in a codebook*/ -void vq_nbest(spx_word16_t *in, const spx_word16_t *codebook, int len, int entries, spx_word32_t *E, int N, int *nbest, spx_word32_t *best_dist, char *stack) -{ - int i,j,k,used; - used = 0; - for (i=0;i<entries;i++) - { - spx_word32_t dist=0; - for (j=0;j<len;j++) - dist = MAC16_16(dist,in[j],*codebook++); -#ifdef FIXED_POINT - dist=SUB32(SHR32(E[i],1),dist); -#else - dist=.5f*E[i]-dist; -#endif - if (i<N || dist<best_dist[N-1]) - { - for (k=N-1; (k >= 1) && (k > used || dist < best_dist[k-1]); k--) - { - best_dist[k]=best_dist[k-1]; - nbest[k] = nbest[k-1]; - } - best_dist[k]=dist; - nbest[k]=i; - used++; - } - } -} -#endif - - - - -#ifndef OVERRIDE_VQ_NBEST_SIGN -/*Finds the indices of the n-best entries in a codebook with sign*/ -void vq_nbest_sign(spx_word16_t *in, const spx_word16_t *codebook, int len, int entries, spx_word32_t *E, int N, int *nbest, spx_word32_t *best_dist, char *stack) -{ - int i,j,k, sign, used; - used=0; - for (i=0;i<entries;i++) - { - spx_word32_t dist=0; - for (j=0;j<len;j++) - dist = MAC16_16(dist,in[j],*codebook++); - if (dist>0) - { - sign=0; - dist=-dist; - } else - { - sign=1; - } -#ifdef FIXED_POINT - dist = ADD32(dist,SHR32(E[i],1)); -#else - dist = ADD32(dist,.5f*E[i]); -#endif - if (i<N || dist<best_dist[N-1]) - { - for (k=N-1; (k >= 1) && (k > used || dist < best_dist[k-1]); k--) - { - best_dist[k]=best_dist[k-1]; - nbest[k] = nbest[k-1]; - } - best_dist[k]=dist; - nbest[k]=i; - used++; - if (sign) - nbest[k]+=entries; - } - } -} -#endif |