Renamed id to stream in C API

include/rtc/rtc.h

@@ -101,8 +101,8 @@ typedef struct {
 	rtcReliability reliability;
 	const char *protocol; // empty string if NULL
 	bool negotiated;
-	bool manualId;
-	uint16_t id; // ignored if manualId is false
+	bool manualStream;
+	uint16_t stream;      // numeric ID 0-65534, ignored if manualStream is false
 } rtcDataChannelInit;
 
 typedef void(RTC_API *rtcLogCallbackFunc)(rtcLogLevel level, const char *message);
@@ -158,6 +158,7 @@ RTC_EXPORT int rtcCreateDataChannel(int pc, const char *label); // returns dc id
 RTC_EXPORT int rtcCreateDataChannelExt(int pc, const char *label, const rtcDataChannelInit *init); // returns dc id
 RTC_EXPORT int rtcDeleteDataChannel(int dc);
 
+RTC_EXPORT int rtcGetDataChannelStream(int dc);
 RTC_EXPORT int rtcGetDataChannelLabel(int dc, char *buffer, int size);
 RTC_EXPORT int rtcGetDataChannelProtocol(int dc, char *buffer, int size);
 RTC_EXPORT int rtcGetDataChannelReliability(int dc, rtcReliability *reliability);

src/capi.cpp

@@ -327,7 +327,7 @@ int rtcAddDataChannelExt(int pc, const char *label, const rtcDataChannelInit *in
 			}
 
 			dci.negotiated = init->negotiated;
-			dci.id = init->manualId ? std::make_optional(init->id) : nullopt;
+			dci.id = init->manualStream ? std::make_optional(init->stream) : nullopt;
 			dci.protocol = init->protocol ? init->protocol : "";
 		}
 
@@ -628,6 +628,13 @@ int rtcGetSelectedCandidatePair(int pc, char *local, int localSize, char *remote
 	});
 }
 
+int rtcGetDataChannelStream(int dc) {
+	return WRAP({
+		auto dataChannel = getDataChannel(dc);
+		return int(dataChannel->id());
+	});
+}
+
 int rtcGetDataChannelLabel(int dc, char *buffer, int size) {
 	return WRAP({
 		auto dataChannel = getDataChannel(dc);