add more range to saved candidates and fix off-by-one error when total is met

src/include/switch_rtp.h

@@ -96,7 +96,7 @@ typedef struct icand_s {
 	uint8_t ready;
 } icand_t;
 
-#define MAX_CAND 25
+#define MAX_CAND 50
 typedef struct ice_s {
 
 	icand_t cands[MAX_CAND][2];

src/switch_core_media.c

@@ -2332,6 +2332,8 @@ static void check_ice(switch_media_handle_t *smh, switch_media_type_t type, sdp_
 			data = switch_core_session_strdup(smh->session, attr->a_value);
 
 			argc = switch_split(data, ' ', fields);
+
+			engine->ice_in.cand_idx++;
 			
 			if (argc < 5 || engine->ice_in.cand_idx >= MAX_CAND) {
 				switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(smh->session), SWITCH_LOG_WARNING, "Invalid data\n");
@@ -2349,8 +2351,6 @@ static void check_ice(switch_media_handle_t *smh, switch_media_type_t type, sdp_
 							  "Checking Candidate cid: %d proto: %s type: %s addr: %s:%s\n", cid+1, fields[2], fields[7], fields[4], fields[5]);
 
 
-			engine->ice_in.cand_idx++;
-
 			for (i = 0; i < engine->cand_acl_count; i++) {
 				if (!engine->ice_in.chosen[cid] && switch_check_network_list_ip(fields[4], engine->cand_acl[i])) {
 					engine->ice_in.chosen[cid] = engine->ice_in.cand_idx;