From e0c65301d5786be04cf4731f1cdeed05c4442482 Mon Sep 17 00:00:00 2001 From: Philipp Maier Date: Tue, 28 Mar 2017 17:05:40 +0200 Subject: gsm0808: Add utils for Channel Type The planned support for true A over IP requires the encoding of the a Channel Type element (see also ASSIGNMENT REQUEST). This commt adds encoding/decoding functionality and tests for the element mentioned above, however, it is not yet actively used. Change-Id: Id0e2164d84b8cbcc6fe6a090fc7f40a1251421d7 --- tests/gsm0808/gsm0808_test.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'tests') diff --git a/tests/gsm0808/gsm0808_test.c b/tests/gsm0808/gsm0808_test.c index 4a4a1084..0dd9e846 100644 --- a/tests/gsm0808/gsm0808_test.c +++ b/tests/gsm0808/gsm0808_test.c @@ -541,6 +541,36 @@ static void test_gsm0808_enc_dec_speech_codec_list() msgb_free(msg); } +static void test_gsm0808_enc_dec_channel_type() +{ + struct gsm0808_channel_type enc_ct; + struct gsm0808_channel_type dec_ct; + struct msgb *msg; + uint8_t ct_enc_expected[] = { GSM0808_IE_CHANNEL_TYPE, + 0x04, 0x01, 0x0b, 0xa1, 0x25 + }; + uint8_t rc_enc; + int rc_dec; + + memset(&enc_ct, 0, sizeof(enc_ct)); + enc_ct.ch_indctr = GSM0808_CHAN_SPEECH; + enc_ct.ch_rate_type = GSM0808_SPEECH_HALF_PREF; + enc_ct.perm_spch[0] = GSM0808_PERM_FR3; + enc_ct.perm_spch[1] = GSM0808_PERM_HR3; + enc_ct.perm_spch_len = 2; + + msg = msgb_alloc(1024, "output buffer"); + rc_enc = gsm0808_enc_channel_type(msg, &enc_ct); + OSMO_ASSERT(rc_enc == 6); + OSMO_ASSERT(memcmp(ct_enc_expected, msg->data, msg->len) == 0); + + rc_dec = gsm0808_dec_channel_type(&dec_ct, msg->data + 2, msg->len - 2); + OSMO_ASSERT(rc_dec == 4); + OSMO_ASSERT(memcmp(&enc_ct, &dec_ct, sizeof(enc_ct)) == 0); + + msgb_free(msg); +} + int main(int argc, char **argv) { printf("Testing generation of GSM0808 messages\n"); @@ -566,6 +596,7 @@ int main(int argc, char **argv) test_gsm0808_enc_dec_speech_codec_ext(); test_gsm0808_enc_dec_speech_codec_ext_with_cfg(); test_gsm0808_enc_dec_speech_codec_list(); + test_gsm0808_enc_dec_channel_type(); printf("Done\n"); return EXIT_SUCCESS; -- cgit v1.2.3