Moved rtp.hpp into rtcp.hpp and rtcp.cpp

include/rtc/rtcp.hpp

@@ -0,0 +1,59 @@
+/**
+ * Copyright (c) 2020 Staz M
+ * Copyright (c) 2020 Paul-Louis Ageneau
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef RTC_RTCP_H
+#define RTC_RTCP_H
+
+#include "include.hpp"
+#include "log.hpp"
+#include "message.hpp"
+
+namespace rtc {
+
+typedef uint32_t SSRC;
+
+class RtcpHandler {
+public:
+	virtual void onOutgoing(std::function<void(rtc::message_ptr)> cb) = 0;
+	virtual std::optional<rtc::message_ptr> incoming(rtc::message_ptr ptr) = 0;
+};
+
+// An RtcpSession can be plugged into a Track to handle the whole RTCP session
+class RtcpSession : public RtcpHandler {
+public:
+	void onOutgoing(std::function<void(rtc::message_ptr)> cb) override;
+
+	std::optional<rtc::message_ptr> incoming(rtc::message_ptr ptr) override;
+	void requestBitrate(unsigned int newBitrate);
+
+private:
+	void pushREMB(unsigned int bitrate);
+	void pushRR(unsigned int lastSR_delay);
+	void tx(message_ptr msg);
+
+	unsigned int mRequestedBitrate = 0;
+	synchronized_callback<rtc::message_ptr> mTxCallback;
+	SSRC mSsrc = 0;
+	uint32_t mGreatestSeqNo = 0;
+	uint64_t mSyncRTPTS, mSyncNTPTS;
+};
+
+} // namespace rtc
+
+#endif // RTC_RTCP_H