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/* 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 <assert.h>
#include <osmocom/codec/codec.h>
#include <gapk/codecs.h>
#include <gapk/formats.h>
#include <gapk/utils.h>
#define RACAL_HR_LEN 14
#define RACAL_FR_LEN 33
#define RACAL_EFR_LEN 31
static int
racal_hr_from_canon(uint8_t *dst, const uint8_t *src, unsigned int src_len)
{
int i, voiced;
const uint16_t *bit_mapping;
assert(src_len == HR_CANON_LEN);
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 RACAL_HR_LEN;
}
static int
racal_hr_to_canon(uint8_t *dst, const uint8_t *src, unsigned int src_len)
{
int i, voiced;
const uint16_t *bit_mapping;
assert(src_len == HR_CANON_LEN);
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 RACAL_HR_LEN;
}
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 = RACAL_HR_LEN,
.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, unsigned int src_len)
{
int i;
assert(src_len == FR_CANON_LEN);
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 RACAL_FR_LEN;
}
static int
racal_fr_to_canon(uint8_t *dst, const uint8_t *src, unsigned int src_len)
{
int i;
assert(src_len == RACAL_FR_LEN);
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 FR_CANON_LEN;
}
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 = RACAL_FR_LEN,
.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, unsigned int src_len)
{
int i;
assert(src_len == EFR_CANON_LEN);
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 RACAL_EFR_LEN;
}
static int
racal_efr_to_canon(uint8_t *dst, const uint8_t *src, unsigned int src_len)
{
int i;
assert(src_len == RACAL_EFR_LEN);
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 EFR_CANON_LEN;
}
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 = RACAL_EFR_LEN,
.conv_from_canon = racal_efr_from_canon,
.conv_to_canon = racal_efr_to_canon,
};
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