libdatachannel/src/rtppacketizer.cpp

/*
 * 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/>.
 */

#if RTC_ENABLE_MEDIA

#include "rtppacketizer.hpp"

namespace rtc {

RTPPacketizer::RTPPacketizer(std::shared_ptr<RTPPacketizationConfig> rtpConfig): rtpConfig(rtpConfig) { }

message_ptr RTPPacketizer::packetize(binary payload, bool setMark) {
    auto msg = make_message(rtpHeaderSize + payload.size());
    auto * rtp = (RTP *)msg->data();
    rtp->setPayloadType(rtpConfig->payloadType);
    // increase sequence number
    rtp->setSeqNumber(rtpConfig->sequenceNumber++);
    rtp->setTimestamp(rtpConfig->timestamp);
    rtp->setSsrc(rtpConfig->ssrc);
    if (setMark) {
        rtp->setMarker(true);
    }
    rtp->preparePacket();
    copy(payload.begin(), payload.end(), msg->begin() + rtpHeaderSize);
    return msg;
}

} // namespace

#endif /* RTC_ENABLE_MEDIA */