mirror of
https://github.com/mii443/libdatachannel.git
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73 lines
2.6 KiB
C++
73 lines
2.6 KiB
C++
/*
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* libdatachannel client example
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* Copyright (c) 2020 Filip Klembara (in2core)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef H264PacketizationHandler_hpp
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#define H264PacketizationHandler_hpp
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#include "rtcp.hpp"
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#include "h264rtppacketizer.hpp"
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#include "rtcpsenderreportable.hpp"
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#include "nalunit.hpp"
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#if RTC_ENABLE_MEDIA
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namespace rtc {
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/// Handler for H264 packetization
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class H264PacketizationHandler: public RtcpHandler, public RTCPSenderReportable {
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/// RTP packetizer for H264
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const std::shared_ptr<H264RTPPacketizer> packetizer;
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const uint16_t maximumFragmentSize;
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std::shared_ptr<NalUnits> splitMessage(message_ptr message);
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public:
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/// Nalunit separator
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enum class Separator {
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LongStartSequence, // 0x00, 0x00, 0x00, 0x01
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ShortStartSequence, // 0x00, 0x00, 0x01
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StartSequence, // LongStartSequence or ShortStartSequence
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Length // first 4 bytes is nal unit length
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};
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/// Construct handler for H264 packetization.
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/// @param separator Nal units separator
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/// @param packetizer RTP packetizer for h264
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H264PacketizationHandler(Separator separator, std::shared_ptr<H264RTPPacketizer> packetizer, uint16_t maximumFragmentSize = NalUnits::defaultMaximumFragmentSize);
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/// Returns message unchanged
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/// @param ptr message
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message_ptr incoming(message_ptr ptr) override;
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/// Returns packetized message if message type is binary
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/// @note NAL units in `ptr` message must be separated by `separator` given in constructor
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/// @note If message generates multiple rtp packets, all but last are send using `outgoingCallback`. It is your responsibility to send last packet.
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/// @param ptr message containing all NAL units for current timestamp (one sample)
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/// @return last packet
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message_ptr outgoing(message_ptr ptr) override;
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private:
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/// Separator
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const Separator separator;
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};
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} // namespace
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#endif /* RTC_ENABLE_MEDIA */
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#endif /* H264PacketizationHandler_hpp */
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