mirror of https://gerrit.osmocom.org/gapk
163 lines
3.4 KiB
C
163 lines
3.4 KiB
C
/* Racal 6103E TCH recordings format */
|
|
|
|
/*
|
|
* This file is part of gapk (GSM Audio Pocket Knife).
|
|
*
|
|
* gapk is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* gapk 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 General Public License
|
|
* along with gapk. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <osmocom/codec/codec.h>
|
|
|
|
#include <gapk/codecs.h>
|
|
#include <gapk/formats.h>
|
|
#include <gapk/utils.h>
|
|
|
|
|
|
static int
|
|
racal_hr_from_canon(uint8_t *dst, const uint8_t *src)
|
|
{
|
|
int i, voiced;
|
|
const uint16_t *bit_mapping;
|
|
|
|
voiced = (msb_get_bit(src, 34) << 1) | msb_get_bit(src, 35);
|
|
|
|
bit_mapping = voiced ?
|
|
&gsm620_voiced_bitorder[0] :
|
|
&gsm620_unvoiced_bitorder[0] ;
|
|
|
|
for (i=0; i<112; i++) {
|
|
int si = bit_mapping[i];
|
|
int di = i;
|
|
lsb_put_bit(dst, di, msb_get_bit(src, si));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
racal_hr_to_canon(uint8_t *dst, const uint8_t *src)
|
|
{
|
|
int i, voiced;
|
|
const uint16_t *bit_mapping;
|
|
|
|
voiced = (lsb_get_bit(src, 94) << 1) | lsb_get_bit(src, 93);
|
|
|
|
bit_mapping = voiced ?
|
|
&gsm620_voiced_bitorder[0] :
|
|
&gsm620_unvoiced_bitorder[0] ;
|
|
|
|
for (i=0; i<112; i++) {
|
|
int si = i;
|
|
int di = bit_mapping[i];
|
|
msb_put_bit(dst, di, lsb_get_bit(src, si));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
const struct format_desc fmt_racal_hr = {
|
|
.type = FMT_RACAL_HR,
|
|
.codec_type = CODEC_HR,
|
|
.name = "racal-hr",
|
|
.description = "Racal HR TCH/H recording",
|
|
|
|
.frame_len = 14,
|
|
.conv_from_canon = racal_hr_from_canon,
|
|
.conv_to_canon = racal_hr_to_canon,
|
|
};
|
|
|
|
|
|
static int
|
|
racal_fr_from_canon(uint8_t *dst, const uint8_t *src)
|
|
{
|
|
int i;
|
|
|
|
dst[32] = 0x00; /* last nibble won't written, pre-clear it */
|
|
|
|
for (i=0; i<260; i++) {
|
|
int si = gsm610_bitorder[i];
|
|
int di = i;
|
|
lsb_put_bit(dst, di, msb_get_bit(src, si));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
racal_fr_to_canon(uint8_t *dst, const uint8_t *src)
|
|
{
|
|
int i;
|
|
|
|
dst[32] = 0x00; /* last nibble won't written, pre-clear it */
|
|
|
|
for (i=0; i<260; i++) {
|
|
int si = i;
|
|
int di = gsm610_bitorder[i];
|
|
msb_put_bit(dst, di, lsb_get_bit(src, si));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
const struct format_desc fmt_racal_fr = {
|
|
.type = FMT_RACAL_FR,
|
|
.codec_type = CODEC_FR,
|
|
.name = "racal-fr",
|
|
.description = "Racal FR TCH/F recording",
|
|
|
|
.frame_len = 33,
|
|
.conv_from_canon = racal_fr_from_canon,
|
|
.conv_to_canon = racal_fr_to_canon,
|
|
};
|
|
|
|
|
|
static int
|
|
racal_efr_from_canon(uint8_t *dst, const uint8_t *src)
|
|
{
|
|
int i;
|
|
|
|
dst[30] = 0x00; /* last nibble won't written, pre-clear it */
|
|
|
|
for (i=0; i<244; i++)
|
|
lsb_put_bit(dst, i, msb_get_bit(src, i));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
racal_efr_to_canon(uint8_t *dst, const uint8_t *src)
|
|
{
|
|
int i;
|
|
|
|
dst[30] = 0x00; /* last nibble won't written, pre-clear it */
|
|
|
|
for (i=0; i<244; i++)
|
|
msb_put_bit(dst, i, lsb_get_bit(src, i));
|
|
|
|
return 0;
|
|
}
|
|
|
|
const struct format_desc fmt_racal_efr = {
|
|
.type = FMT_RACAL_EFR,
|
|
.codec_type = CODEC_EFR,
|
|
.name = "racal-efr",
|
|
.description = "Racal EFR TCH/F recording",
|
|
|
|
.frame_len = 31,
|
|
.conv_from_canon = racal_efr_from_canon,
|
|
.conv_to_canon = racal_efr_to_canon,
|
|
};
|