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/*
* Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef CALL_RTP_STREAM_RECEIVER_CONTROLLER_H_
#define CALL_RTP_STREAM_RECEIVER_CONTROLLER_H_
#include <memory>
#include "call/rtp_demuxer.h"
#include "call/rtp_stream_receiver_controller_interface.h"
#include "rtc_base/critical_section.h"
namespace webrtc {
class RtpPacketReceived;
// This class represents the RTP receive parsing and demuxing, for a
// single RTP session.
// TODO(nisse): Add RTCP processing, we should aim to terminate RTCP
// and not leave any RTCP processing to individual receive streams.
// TODO(nisse): Extract per-packet processing, including parsing and
// demuxing, into a separate class.
class RtpStreamReceiverController
: public RtpStreamReceiverControllerInterface {
public:
RtpStreamReceiverController();
~RtpStreamReceiverController() override;
// Implements RtpStreamReceiverControllerInterface.
std::unique_ptr<RtpStreamReceiverInterface> CreateReceiver(
uint32_t ssrc,
RtpPacketSinkInterface* sink) override;
// Thread-safe wrappers for the corresponding RtpDemuxer methods.
bool AddSink(uint32_t ssrc, RtpPacketSinkInterface* sink) override;
size_t RemoveSink(const RtpPacketSinkInterface* sink) override;
// TODO(nisse): Not yet responsible for parsing.
bool OnRtpPacket(const RtpPacketReceived& packet);
private:
class Receiver : public RtpStreamReceiverInterface {
public:
Receiver(RtpStreamReceiverController* controller,
uint32_t ssrc,
RtpPacketSinkInterface* sink);
~Receiver() override;
private:
RtpStreamReceiverController* const controller_;
RtpPacketSinkInterface* const sink_;
};
// TODO(nisse): Move to a TaskQueue for synchronization. When used
// by Call, we expect construction and all methods but OnRtpPacket
// to be called on the same thread, and OnRtpPacket to be called
// by a single, but possibly distinct, thread. But applications not
// using Call may have use threads differently.
rtc::CriticalSection lock_;
RtpDemuxer demuxer_ RTC_GUARDED_BY(&lock_);
};
} // namespace webrtc
#endif // CALL_RTP_STREAM_RECEIVER_CONTROLLER_H_
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