89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
/**
|
|
* Copyright (c) 2020 Filip Klembara (in2core)
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
|
|
*/
|
|
|
|
#ifndef RTC_RTP_PACKETIZER_H
|
|
#define RTC_RTP_PACKETIZER_H
|
|
|
|
#if RTC_ENABLE_MEDIA
|
|
|
|
#include "mediahandler.hpp"
|
|
#include "message.hpp"
|
|
#include "rtppacketizationconfig.hpp"
|
|
|
|
namespace rtc {
|
|
|
|
/// RTP packetizer
|
|
class RTC_CPP_EXPORT RtpPacketizer : public MediaHandler {
|
|
public:
|
|
/// Constructs 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
|
|
RtpPacketizer(shared_ptr<RtpPacketizationConfig> rtpConfig);
|
|
virtual ~RtpPacketizer();
|
|
|
|
virtual void media(const Description::Media &desc) override;
|
|
virtual void outgoing(message_vector &messages, const message_callback &send) override;
|
|
|
|
/// RTP packetization config
|
|
const shared_ptr<RtpPacketizationConfig> rtpConfig;
|
|
|
|
protected:
|
|
/// Creates RTP packet for given payload
|
|
/// @note This function increase sequence number after packetization.
|
|
/// @param payload RTP payload
|
|
/// @param setMark Set marker flag in RTP packet if true
|
|
virtual message_ptr packetize(shared_ptr<binary> payload, bool mark);
|
|
|
|
private:
|
|
static const auto RtpHeaderSize = 12;
|
|
static const auto RtpExtHeaderCvoSize = 8;
|
|
};
|
|
|
|
// Generic audio RTP packetizer
|
|
template <uint32_t DEFAULT_CLOCK_RATE>
|
|
class RTC_CPP_EXPORT AudioRtpPacketizer final : public RtpPacketizer {
|
|
public:
|
|
inline static const uint32_t DefaultClockRate = DEFAULT_CLOCK_RATE;
|
|
inline static const uint32_t defaultClockRate [[deprecated("Use DefaultClockRate")]] =
|
|
DEFAULT_CLOCK_RATE; // for backward compatibility
|
|
|
|
AudioRtpPacketizer(shared_ptr<RtpPacketizationConfig> rtpConfig)
|
|
: RtpPacketizer(std::move(rtpConfig)) {}
|
|
};
|
|
|
|
// Audio RTP packetizers
|
|
using OpusRtpPacketizer = AudioRtpPacketizer<48000>;
|
|
using AACRtpPacketizer = AudioRtpPacketizer<48000>;
|
|
|
|
// Dummy wrapper for backward compatibility, do not use
|
|
class RTC_CPP_EXPORT PacketizationHandler final : public MediaHandler {
|
|
public:
|
|
PacketizationHandler(shared_ptr<RtpPacketizer> packetizer)
|
|
: mPacketizer(std::move(packetizer)) {}
|
|
|
|
inline void outgoing(message_vector &messages, const message_callback &send) {
|
|
return mPacketizer->outgoing(messages, send);
|
|
}
|
|
|
|
private:
|
|
shared_ptr<RtpPacketizer> mPacketizer;
|
|
};
|
|
|
|
// Audio packetization handlers for backward compatibility, do not use
|
|
using OpusPacketizationHandler [[deprecated("Add OpusRtpPacketizer directly")]] =
|
|
PacketizationHandler;
|
|
using AACPacketizationHandler [[deprecated("Add AACRtpPacketizer directly")]] =
|
|
PacketizationHandler;
|
|
|
|
} // namespace rtc
|
|
|
|
#endif /* RTC_ENABLE_MEDIA */
|
|
|
|
#endif /* RTC_RTP_PACKETIZER_H */
|