plugins/audio/Speex/libspeex/misc.c

   1 /* Copyright (C) 2002 Jean-Marc Valin
   2    File: mics.c
   3    Various utility routines for Speex
   4
   5    Redistribution and use in source and binary forms, with or without
   6    modification, are permitted provided that the following conditions
   7    are met:
   8
   9    - Redistributions of source code must retain the above copyright
  10    notice, this list of conditions and the following disclaimer.
  11
  12    - Redistributions in binary form must reproduce the above copyright
  13    notice, this list of conditions and the following disclaimer in the
  14    documentation and/or other materials provided with the distribution.
  15
  16    - Neither the name of the Xiph.org Foundation nor the names of its
  17    contributors may be used to endorse or promote products derived from
  18    this software without specific prior written permission.
  19
  20    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23    A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
  24    CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  25    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  26    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  27    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  28    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  29    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  30    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31 */
  32
  33 #include "misc.h"
  34 #include <stdlib.h>
  35 #include <string.h>
  36 #include <stdio.h>
  37
  38 #ifndef RELEASE
  39 void print_vec(float *vec, int len, char *name)
  40 {
  41    int i;
  42    printf ("%s ", name);
  43    for (i=0;i<len;i++)
  44       printf (" %f", vec[i]);
  45    printf ("\n");
  46 }
  47 #endif
  48
  49 unsigned int be_int(unsigned int i)
  50 {
  51    unsigned int ret=i;
  52 #ifndef WORDS_BIGENDIAN
  53    ret =  i>>24;
  54    ret += (i>>8)&0x0000ff00;
  55    ret += (i<<8)&0x00ff0000;
  56    ret += (i<<24);
  57 #endif
  58    return ret;
  59 }
  60
  61 unsigned int le_int(unsigned int i)
  62 {
  63    unsigned int ret=i;
  64 #ifdef WORDS_BIGENDIAN
  65    ret =  i>>24;
  66    ret += (i>>8)&0x0000ff00;
  67    ret += (i<<8)&0x00ff0000;
  68    ret += (i<<24);
  69 #endif
  70    return ret;
  71 }
  72
  73 unsigned short be_short(unsigned short s)
  74 {
  75    unsigned short ret=s;
  76 #ifndef WORDS_BIGENDIAN
  77    ret =  s>>8;
  78    ret += s<<8;
  79 #endif
  80    return ret;
  81 }
  82
  83 unsigned short le_short(unsigned short s)
  84 {
  85    unsigned short ret=s;
  86 #ifdef WORDS_BIGENDIAN
  87    ret =  s>>8;
  88    ret += s<<8;
  89 #endif
  90    return ret;
  91 }
  92
  93 void *speex_alloc (int size)
  94 {
  95    return calloc(size,1);
  96 }
  97
  98 void *speex_realloc (void *ptr, int size)
  99 {
 100    return realloc(ptr, size);
 101 }
 102
 103 void speex_free (void *ptr)
 104 {
 105    free(ptr);
 106 }
 107
 108 void *speex_move (void *dest, void *src, int n)
 109 {
 110    return memmove(dest,src,n);
 111 }
 112
 113 void speex_error(char *str)
 114 {
 115    fprintf (stderr, "Fatal error: %s\n", str);
 116    exit(1);
 117 }
 118
 119 void speex_warning(char *str)
 120 {
 121    fprintf (stderr, "warning: %s\n", str);
 122 }
 123
 124 void speex_warning_int(char *str, int val)
 125 {
 126    fprintf (stderr, "warning: %s %d\n", str, val);
 127 }
 128
 129 void speex_rand_vec(float std, float *data, int len)
 130 {
 131    int i;
 132    for (i=0;i<len;i++)
 133       data[i]+=3*std*((((float)rand())/RAND_MAX)-.5);
 134 }
 135
 136 float speex_rand(float std)
 137 {
 138    return 3*std*((((float)rand())/RAND_MAX)-.5);
 139 }
 140
 141 void _speex_putc(int ch, void *file)
 142 {
 143    FILE *f = (FILE *)file;
 144    fputc(ch, f);
 145 }