1 files changed, 127 insertions, 0 deletions
diff --git a/contrib/ber/rtp_gen_map.c b/contrib/ber/rtp_gen_map.c
new file mode 100644
index 00000000..cbf1587f
--- /dev/null
+++ b/contrib/ber/rtp_gen_map.c
@@ -0,0 +1,127 @@
+#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;
+}