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/* utility to generate codec_bit_class.h, a file with structures
* describing which [protection] class each bit of a given codec frame belongs to */
/* (C) 2019 sysmocom - s.f.m.c. GmbH; Author: Sylvain Munaut
* All Rights Reserved
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <osmocom/codec/codec.h>
static int
gen_table_fr(int *tbl)
{
int i, j;
tbl[0] = tbl[1] = tbl[2] = tbl[3] = -1;
for (i = 0; i < 260; i++) {
j = 4 + gsm610_bitorder[i];
if (i < 50)
tbl[j] = 0; /* Class 1a */
else if (i < 182)
tbl[j] = 1; /* Class 1b */
else
tbl[j] = 2; /* Class 2 */
}
return GSM_FR_BYTES * 8;
}
static int
gen_table_efr(int *tbl)
{
int i, j, k;
tbl[0] = tbl[1] = tbl[2] = tbl[3] = -1;
for (i = 0; i < 260; i++) {
j = gsm660_bitorder[i];
if (j < 71)
k = j;
else if (j < 73)
k = 71;
else if (j < 123)
k = j - 2;
else if (j < 125)
k = 119;
else if (j < 178)
k = j - 4;
else if (j < 180)
k = 172;
else if (j < 230)
k = j - 6;
else if (j < 232)
k = 222;
else if (j < 252)
k = j - 8;
else
continue;
if (i < 50)
tbl[k] = 0; /* Class 1a */
else if (i < 182)
tbl[k] = 1; /* Class 1b */
else
tbl[k] = 2; /* Class 2 */
}
return GSM_EFR_BYTES * 8;
}
static int
gen_table_amr_12_2(int *tbl)
{
int i;
for (i = 0; i < 16; i++)
tbl[i] = -1;
for (i = 0; i < 244; i++)
tbl[i+16] = i < 81 ? 0 : 1;
for (i = 0; i < 4; i++)
tbl[i+16+244] = -1;
return 8 * 33;
}
static void
print_table(const char *name, int *tbl, int len)
{
int i;
printf("static const int %s[] = {\n", name);
for (i = 0; i < len; i++) {
if ((i & 15) == 0)
printf("\t");
printf("%2d", tbl[i]);
if (((i & 15) == 15) || (i == len-1))
printf(",\n");
else
printf(", ");
}
printf("};\n\n");
}
int main(int argc, char *argv[])
{
int tbl[33*8];
int rv;
rv = gen_table_fr(tbl);
print_table("gsm_fr_bitclass", tbl, rv);
rv = gen_table_efr(tbl);
print_table("gsm_efr_bitclass", tbl, rv);
rv = gen_table_amr_12_2(tbl);
print_table("gsm_amr_12_2_bitclass", tbl, rv);
return 0;
}
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