Add h264 and opus streaming support to libdatachannel

include/rtc/h264rtppacketizer.hpp

@@ -0,0 +1,45 @@
+/*
+ * libdatachannel streamer 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 H264RTPPacketizer_hpp
+#define H264RTPPacketizer_hpp
+
+#include "rtppacketizer.hpp"
+
+#if RTC_ENABLE_MEDIA
+
+namespace rtc {
+
+/// RTP packetization of h264 payload
+class H264RTPPacketizer: public rtc::RTPPacketizer {
+
+public:
+    /// Default clock rate for H264 in RTP
+    static const auto defaultClockRate = 90 * 1000;
+
+    /// Constructs h264 payload packetizer with given RTP configuration.
+    /// @note RTP configuration is used in packetization process which may change some configuration properties such as sequence number.
+    /// @param rtpConfig  RTP configuration
+    H264RTPPacketizer(std::shared_ptr<rtc::RTPPacketizationConfig> rtpConfig);
+};
+
+} // namespace
+
+#endif /* RTC_ENABLE_MEDIA */
+
+#endif /* H264RTPPacketizer_hpp */