TT#92250 also create codec handlers for synthesised supp PTs

Change-Id: Icebd5a5d8f1ab159f7343b8036e36322b1211e8a

daemon/codec.c

@@ -3252,8 +3252,24 @@ void codec_tracker_finish(struct call_media *media) {
 				continue;
 			pt->for_transcoding = 1;
 
+			// there should be an existing entry with a different clock rate
+			GQueue *existing_pts = g_hash_table_lookup(media->codec_names_recv, &pt->encoding);
+			struct rtp_payload_type *existing_pt = NULL;
+			if (existing_pts && existing_pts->length) {
+				int pt_num = GPOINTER_TO_UINT(existing_pts->head->data);
+				existing_pt = g_hash_table_lookup(media->codecs_recv, &pt_num);
+			}
+			struct codec_handler *existing_handler = existing_pt ? codec_handler_get(media, existing_pt->payload_type) : NULL;
+
 			__rtp_payload_type_add_recv(media, pt, 1);
 
+			if (existing_pt && existing_handler) {
+				// since this happens after we ran through the codec matchup, we must create the appropriate handler here
+				struct codec_handler *handler = __get_pt_handler(media, pt);
+				// duplicate the codec handler of the existing PT
+				__make_transcoder(handler, &existing_handler->dest_pt, NULL, existing_handler->dtmf_payload_type, 0);
+			}
+
 			g_free(pt_s);
 		}
 

t/transcode-test.c

@@ -1687,6 +1687,24 @@ int main(void) {
 	packet_seq(B, 8, PCMA_payload, 160, 1, 8, PCMA_payload);
 	packet_seq(A, 13, "\x20", 320, 2, 8, "\xf5\x5c\x4b\xc2\xde\xf4\x5e\xd4\x47\x70\x5d\x77\x45\x51\xc5\xcd\xd7\x77\x5a\xf5\xcf\x4a\x4c\x40\xc3\x47\x74\x49\x59\xc4\x76\x57\x71\x57\x40\xc5\xf4\x5a\x47\xd6\xc4\xf6\xc7\xf3\x40\x58\x74\x54\x4b\xd7\x5c\xc7\x41\x49\xf5\x5b\x53\xd9\x70\x44\xcd\xc4\xce\xcb\xc7\x58\xcd\x45\xc6\x71\xf5\x70\x43\xca\x43\xd5\x52\x5c\x75\x74\xc6\xc3\x4f\xda\x56\xc3\x46\xf5\x49\xdf\x56\x4f\x71\x5b\x52\xc6\x4e\xd0\x43\xc2\xcd\xd5\xdf\x40\x43\x4a\xf7\xf6\xd9\xdf\xde\x45\xc9\xd9\xc2\xf0\xc1\x4a\x40\x52\xd1\x5b\xd0\x54\xc9\x5e\xde\xd5\x74\x5c\x5d\x59\x71\xc1\xc1\x71\xd2\xcb\x50\x50\x54\x53\x75\xdc\x4b\xcf\xc2\xd7\x4a\xcc\x58\xc7\xdb\xd8\x48\x4a\xd6\x58\xf0\x46");
 	packet_seq(B, 8, PCMA_silence, 320, 2, 13, "\x40");
+	// DTMF PT TC
+	start();
+	sdp_pt(9, G722, 8000);
+	sdp_pt(8, PCMA, 8000);
+	sdp_pt(101, telephone-event, 8000);
+	ht_set(codec_mask, all);
+	transcode(opus/48000/1);
+	transcode(PCMA);
+	transcode(telephone-event);
+	offer();
+	expect(B, recv, "96/opus/48000 8/PCMA/8000 101/telephone-event/8000 97/telephone-event/48000/0-15");
+	sdp_pt(96, opus, 48000);
+	sdp_pt(97, telephone-event, 48000);
+	flags.single_codec = 1;
+	answer();
+	expect(A, recv, "9/G722/8000 101/telephone-event/8000");
+	packet_seq(A, 101, "\x05\x07\x01\x40", 4000, 10, 97, "\x05\x07\x07\x80");
+	packet_seq(B, 97, "\x05\x07\x07\x80", 4000, 10, 101, "\x05\x07\x01\x40");
 
 	return 0;
 }