# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1739046983 0
# Node ID 9eff2af191d517a20022a434dd990b94968ff94b
# Parent  58dfdb2fc6dfec9a675cb49c93076b54f69b0ec0
trau-parse: AMR 10k2 CRC

diff -r 58dfdb2fc6df -r 9eff2af191d5 trau-decode/parse-amr.c
--- a/trau-decode/parse-amr.c	Sat Feb 08 18:26:48 2025 +0000
+++ b/trau-decode/parse-amr.c	Sat Feb 08 20:36:23 2025 +0000
@@ -91,6 +91,35 @@
 decode_mode_6(c_bits, d_bits)
 	ubit_t *c_bits, *d_bits;
 {
+	ubit_t crc_collect[82];
+	int crc1, crc2, crc3, crc4;
+
+	bcopy(c_bits, crc_collect, 25);
+	bcopy(d_bits, crc_collect + 25, 45);
+	bcopy(d_bits + 46, crc_collect + 70, 8);
+	bcopy(d_bits + 85, crc_collect + 78, 2);
+	bcopy(d_bits + 88, crc_collect + 80, 2);
+	crc1 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 82,
+					d_bits + 92);
+	bcopy(d_bits + 95, crc_collect, 4);
+	bcopy(d_bits + 131, crc_collect + 4, 2);
+	bcopy(d_bits + 134, crc_collect + 6, 2);
+	crc2 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 8,
+					d_bits + 138);
+	bcopy(d_bits + 141, crc_collect, 8);
+	bcopy(d_bits + 180, crc_collect + 8, 2);
+	bcopy(d_bits + 183, crc_collect + 10, 2);
+	crc3 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 12,
+					d_bits + 187);
+	bcopy(d_bits + 190, crc_collect, 4);
+	bcopy(d_bits + 226, crc_collect + 4, 2);
+	bcopy(d_bits + 229, crc_collect + 6, 2);
+	bcopy(d_bits + 233, crc_collect + 8, 20);
+	crc4 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 28,
+					d_bits + 253);
+	printf("    CRC %s %s %s %s\n",
+		crc1 ? "bad" : "good", crc2 ? "bad" : "good",
+		crc3 ? "bad" : "good", crc4 ? "bad" : "good");
 }
 
 static void