diff options
Diffstat (limited to 'src/polypcore/sconv.c')
-rw-r--r-- | src/polypcore/sconv.c | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/src/polypcore/sconv.c b/src/polypcore/sconv.c deleted file mode 100644 index c557be67..00000000 --- a/src/polypcore/sconv.c +++ /dev/null @@ -1,169 +0,0 @@ -/* $Id$ */ - -/*** - This file is part of polypaudio. - - polypaudio is free software; you can redistribute it and/or modify - it under the terms of the GNU Lesser General Public License as published - by the Free Software Foundation; either version 2 of the License, - or (at your option) any later version. - - polypaudio is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with polypaudio; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - USA. -***/ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <assert.h> - -#include <liboil/liboilfuncs.h> -#include <liboil/liboil.h> - -#include <polypcore/g711.h> - -#include "endianmacros.h" -#include "sconv-s16le.h" -#include "sconv-s16be.h" - -#include "sconv.h" - -static void u8_to_float32ne(unsigned n, const void *a, float *b) { - const uint8_t *ca = a; - static const double add = -128.0/127.0, factor = 1.0/127.0; - - assert(a); - assert(b); - - oil_scaleconv_f32_u8(b, ca, n, &add, &factor); -} - -static void u8_from_float32ne(unsigned n, const float *a, void *b) { - uint8_t *cb = b; - static const double add = 128.0, factor = 127.0; - - assert(a); - assert(b); - - oil_scaleconv_u8_f32(cb, a, n, &add, &factor); -} - -static void float32ne_to_float32ne(unsigned n, const void *a, float *b) { - assert(a); - assert(b); - - oil_memcpy(b, a, sizeof(float) * n); -} - -static void float32ne_from_float32ne(unsigned n, const float *a, void *b) { - assert(a); - assert(b); - - oil_memcpy(b, a, sizeof(float) * n); -} - -static void ulaw_to_float32ne(unsigned n, const void *a, float *b) { - const uint8_t *ca = a; - - assert(a); - assert(b); - - for (; n > 0; n--) - *(b++) = st_ulaw2linear16(*(ca++)) * 1.0F / 0x7FFF; -} - -static void ulaw_from_float32ne(unsigned n, const float *a, void *b) { - uint8_t *cb = b; - - assert(a); - assert(b); - - for (; n > 0; n--) { - float v = *(a++); - - if (v > 1) - v = 1; - - if (v < -1) - v = -1; - - *(cb++) = st_14linear2ulaw((int16_t) (v * 0x1FFF)); - } -} - -static void alaw_to_float32ne(unsigned n, const void *a, float *b) { - const uint8_t *ca = a; - - assert(a); - assert(b); - - for (; n > 0; n--) - *(b++) = st_alaw2linear16(*(ca++)) * 1.0F / 0x7FFF; -} - -static void alaw_from_float32ne(unsigned n, const float *a, void *b) { - uint8_t *cb = b; - - assert(a); - assert(b); - - for (; n > 0; n--) { - float v = *(a++); - - if (v > 1) - v = 1; - - if (v < -1) - v = -1; - - *(cb++) = st_13linear2alaw((int16_t) (v * 0xFFF)); - } -} - -pa_convert_to_float32ne_func_t pa_get_convert_to_float32ne_function(pa_sample_format_t f) { - switch(f) { - case PA_SAMPLE_U8: - return u8_to_float32ne; - case PA_SAMPLE_S16LE: - return pa_sconv_s16le_to_float32ne; - case PA_SAMPLE_S16BE: - return pa_sconv_s16be_to_float32ne; - case PA_SAMPLE_FLOAT32NE: - return float32ne_to_float32ne; - case PA_SAMPLE_ALAW: - return alaw_to_float32ne; - case PA_SAMPLE_ULAW: - return ulaw_to_float32ne; - default: - return NULL; - } -} - -pa_convert_from_float32ne_func_t pa_get_convert_from_float32ne_function(pa_sample_format_t f) { - switch(f) { - case PA_SAMPLE_U8: - return u8_from_float32ne; - case PA_SAMPLE_S16LE: - return pa_sconv_s16le_from_float32ne; - case PA_SAMPLE_S16BE: - return pa_sconv_s16be_from_float32ne; - case PA_SAMPLE_FLOAT32NE: - return float32ne_from_float32ne; - case PA_SAMPLE_ALAW: - return alaw_from_float32ne; - case PA_SAMPLE_ULAW: - return ulaw_from_float32ne; - default: - return NULL; - } -} |