Simplify some code

Author: kmansoft

src/description.cpp

@@ -872,12 +872,11 @@ void Description::Entry::parseSdpLine(string_view line) {
 
 			const auto rid = list[0];
 			const auto direction = list[1];
-			const auto attr_list = list.size() >= 3 ? list[2] : "";
 
 			auto builder = RidBuilder(string(rid));
 
-			if (!attr_list.empty()) {
-				const auto attr_list_parsed = parse_attr_list(attr_list);
+			if (list.size() == 3) {
+				const auto attr_list_parsed = parse_attr_list(list[2]);
 				for (const auto& [attr_key, attr_value] : attr_list_parsed) {
 					if (attr_key == "max-width") {
 						builder.max_width(to_integer<uint32_t>(attr_value));

test/simulcast_sdp_parsing.cpp

@@ -59,7 +59,7 @@ TestResult test_simulcast_sdp_parsing() {
 	{
 		Description::Video video0("video0");
 		video0.parseSdpLine("a=rid:layer0 send max-width=1920;max-height=1080;max-fps=60");
-		video0.parseSdpLine("a=rid:layer1 send max-height=720;max-fps=30;max-br=1500000;foo=bar");
+		video0.parseSdpLine("a=rid:layer1 send max-height=720;max-fps=20;max-fps=30;max-br=1500000;foo=bar");
 
 		const auto rid_list = video0.rids();
 		if (rid_list.size() != 2) {