Add h264 and opus streaming support to libdatachannel

include/rtc/opuspacketizationhandler.hpp

@@ -0,0 +1,52 @@
+/*
+ * libdatachannel client example
+ * Copyright (c) 2020 Filip Klembara (in2core)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef OpusPacketizationHandler_hpp
+#define OpusPacketizationHandler_hpp
+
+#include "rtcpsenderreportable.hpp"
+#include "opusrtppacketizer.hpp"
+#include "rtcp.hpp"
+
+#if RTC_ENABLE_MEDIA
+
+namespace rtc {
+
+/// Handler for opus packetization
+class OpusPacketizationHandler: public RtcpHandler, public RTCPSenderReportable {
+    /// RTP packetizer for opus
+    const std::shared_ptr<OpusRTPPacketizer> packetizer;
+
+public:
+    /// Construct handler for opus packetization.
+    /// @param packetizer RTP packetizer for opus
+    OpusPacketizationHandler(std::shared_ptr<OpusRTPPacketizer> packetizer);
+
+    /// Returns message unchanged
+    /// @param ptr message
+    message_ptr incoming(message_ptr ptr) override;
+    /// Returns packetized message if message type is binary
+    /// @param ptr message
+    message_ptr outgoing(message_ptr ptr) override;
+};
+
+}   // namespace
+
+#endif /* RTC_ENABLE_MEDIA */
+
+#endif /* OpusPacketizationHandler_hpp */