From 6f725d6da3b488558e78d4ba8dacfecde196f07f Mon Sep 17 00:00:00 2001 From: Philipp Maier Date: Fri, 24 Mar 2017 18:03:17 +0100 Subject: gsm0808: Add utils for Speech Codec List and Speech Codec The planned support for true A over IP requires the encoding and decoding of a so called "Speech Codec Element" element. This commt adds parsing functionality and tests for the element mentioned above, however, it is not yet actively used. Change-Id: I0e1e2edf47adaa45b22d4b0bcae3640dba7ca200 --- tests/gsm0808/gsm0808_test.c | 124 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 124 insertions(+) (limited to 'tests/gsm0808') diff --git a/tests/gsm0808/gsm0808_test.c b/tests/gsm0808/gsm0808_test.c index 26bd1d60..b22de9b8 100644 --- a/tests/gsm0808/gsm0808_test.c +++ b/tests/gsm0808/gsm0808_test.c @@ -309,6 +309,126 @@ static void test_enc_dec_aoip_trasp_addr_v6() msgb_free(msg); } +static void test_gsm0808_enc_dec_speech_codec() +{ + struct gsm0808_speech_codec enc_sc; + struct gsm0808_speech_codec dec_sc; + struct msgb *msg; + uint8_t rc_enc; + int rc_dec; + + memset(&enc_sc, 0, sizeof(enc_sc)); + enc_sc.fi = true; + enc_sc.pt = true; + enc_sc.type = 0x05; + + msg = msgb_alloc(1024, "output buffer"); + rc_enc = gsm0808_enc_speech_codec(msg, &enc_sc); + OSMO_ASSERT(rc_enc == 3); + + rc_dec = gsm0808_dec_speech_codec(&dec_sc, msg->data + 2, msg->len - 2); + OSMO_ASSERT(rc_dec == 1); + + OSMO_ASSERT(memcmp(&enc_sc, &dec_sc, sizeof(enc_sc)) == 0); + + msgb_free(msg); +} + + +static void test_gsm0808_enc_dec_speech_codec_ext_with_cfg() +{ + struct gsm0808_speech_codec enc_sc; + struct gsm0808_speech_codec dec_sc; + struct msgb *msg; + uint8_t rc_enc; + int rc_dec; + + enc_sc.pi = true; + enc_sc.tf = true; + enc_sc.type = 0xab; + enc_sc.type_extended = true; + enc_sc.cfg_present = true; + enc_sc.cfg = 0xcdef; + + msg = msgb_alloc(1024, "output buffer"); + rc_enc = gsm0808_enc_speech_codec(msg, &enc_sc); + OSMO_ASSERT(rc_enc == 6); + + rc_dec = gsm0808_dec_speech_codec(&dec_sc, msg->data + 2, msg->len - 2); + OSMO_ASSERT(rc_dec == 4); + + OSMO_ASSERT(memcmp(&enc_sc, &dec_sc, sizeof(enc_sc)) == 0); + + msgb_free(msg); +} + +static void test_gsm0808_enc_dec_speech_codec_ext() +{ + struct gsm0808_speech_codec enc_sc; + struct gsm0808_speech_codec dec_sc; + struct msgb *msg; + uint8_t rc_enc; + int rc_dec; + + enc_sc.fi = true; + enc_sc.tf = true; + enc_sc.type = 0xf2; + enc_sc.type_extended = true; + enc_sc.cfg_present = false; + enc_sc.cfg = 0x0000; + + msg = msgb_alloc(1024, "output buffer"); + rc_enc = gsm0808_enc_speech_codec(msg, &enc_sc); + OSMO_ASSERT(rc_enc == 4); + + rc_dec = gsm0808_dec_speech_codec(&dec_sc, msg->data + 2, msg->len - 2); + OSMO_ASSERT(rc_dec == 2); + + OSMO_ASSERT(memcmp(&enc_sc, &dec_sc, sizeof(enc_sc)) == 0); + + msgb_free(msg); +} + +static void test_gsm0808_enc_dec_speech_codec_list() +{ + struct gsm0808_speech_codec_list enc_scl; + struct gsm0808_speech_codec_list dec_scl; + struct msgb *msg; + uint8_t rc_enc; + int rc_dec; + + memset(&enc_scl, 0, sizeof(enc_scl)); + + enc_scl.codec[0].pi = true; + enc_scl.codec[0].tf = true; + enc_scl.codec[0].type = 0xab; + enc_scl.codec[0].type_extended = true; + enc_scl.codec[0].cfg_present = true; + enc_scl.codec[0].cfg = 0xcdef; + + enc_scl.codec[1].fi = true; + enc_scl.codec[1].pt = true; + enc_scl.codec[1].type = 0x05; + + enc_scl.codec[2].fi = true; + enc_scl.codec[2].tf = true; + enc_scl.codec[2].type = 0xf2; + enc_scl.codec[2].type_extended = true; + + enc_scl.len = 3; + + msg = msgb_alloc(1024, "output buffer"); + rc_enc = gsm0808_enc_speech_codec_list(msg, &enc_scl); + OSMO_ASSERT(rc_enc == 9); + + rc_dec = gsm0808_dec_speech_codec_list(&dec_scl, msg->data + 2, msg->len - 2); + OSMO_ASSERT(rc_dec == 7); + + OSMO_ASSERT(memcmp(&enc_scl, &dec_scl, sizeof(enc_scl)) == 0); + + msgb_free(msg); +} + int main(int argc, char **argv) { printf("Testing generation of GSM0808 messages\n"); @@ -327,6 +447,10 @@ int main(int argc, char **argv) test_prepend_dtap(); test_enc_dec_aoip_trasp_addr_v4(); test_enc_dec_aoip_trasp_addr_v6(); + test_gsm0808_enc_dec_speech_codec(); + test_gsm0808_enc_dec_speech_codec_ext(); + test_gsm0808_enc_dec_speech_codec_ext_with_cfg(); + test_gsm0808_enc_dec_speech_codec_list(); printf("Done\n"); return EXIT_SUCCESS; -- cgit v1.2.3