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code.delx.au - pulseaudio/blob - polyp/sconv-s16le.c
4 This file is part of polypaudio.
6 polypaudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2 of the License,
9 or (at your option) any later version.
11 polypaudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with polypaudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
29 #include "endianmacros.h"
34 #define INT16_FROM INT16_FROM_LE
38 #define INT16_TO INT16_TO_LE
41 void pa_sconv_s16le_to_float32ne(unsigned n
, const void *a
, unsigned an
, float *b
) {
42 const int16_t *ca
= a
;
43 assert(n
&& a
&& an
&& b
);
49 for (i
= 0; i
< an
; i
++) {
51 sum
+= ((float) INT16_FROM(s
))/0x7FFF;
63 void pa_sconv_s16le_from_float32ne(unsigned n
, const float *a
, void *b
, unsigned bn
) {
66 /* pa_log("%u %p %p %u\n", n, a, b, bn); */
68 assert(n
&& a
&& b
&& bn
);
80 s
= (int16_t) (v
* 0x7FFF);
83 for (i
= 0; i
< bn
; i
++)