mgcp_client: add new clearmode codec

Set 120 as payload type, as specified in 3GPP TS 48.103 table 5.4.2.2.1.

Related: OS#4395
Related: https://www.rfc-editor.org/rfc/rfc4040#section-5
Change-Id: I55f9fe241a405935dbedc3947b0a4f4986acd5cb

include/osmocom/mgcp_client/mgcp_client.h

@@ -50,6 +50,7 @@ enum mgcp_codecs {
 	CODEC_AMR_8000_1 = 112,
 	CODEC_AMRWB_16000_1 = 113,
 	CODEC_IUFP = 96,
+	CODEC_CLEARMODE = 120, /* 3GPP TS 48.103 table 5.4.2.2.1 */
 };
 /* Note: when new codec types are added, the corresponding value strings
  * in mgcp_client.c (codec_table) must be updated as well. Enumerations

src/libosmo-mgcp-client/mgcp_client.c

@@ -60,6 +60,7 @@ const struct value_string osmo_mgcpc_codec_names[] = {
 	{ CODEC_AMR_8000_1, "AMR/8000/1" },
 	{ CODEC_AMRWB_16000_1, "AMR-WB/16000/1" },
 	{ CODEC_IUFP, "VND.3GPP.IUFP/16000" },
+	{ CODEC_CLEARMODE, "CLEARMODE/8000" },
 	{ 0, NULL },
 };