0a4c1616bf
There is no need for it to be an interface. In this CL, I also took the opportunity to make two small fixes: - remove the 'flexfec_' prefix from some member variables - remove unnecessary use of a stringstream object BUG=webrtc:5654 Review-Url: https://codereview.webrtc.org/2471073003 Cr-Commit-Position: refs/heads/master@{#14919}
76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
/*
|
|
* Copyright (c) 2016 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 WEBRTC_MODULES_RTP_RTCP_INCLUDE_FLEXFEC_RECEIVER_H_
|
|
#define WEBRTC_MODULES_RTP_RTCP_INCLUDE_FLEXFEC_RECEIVER_H_
|
|
|
|
#include <memory>
|
|
|
|
#include "webrtc/base/basictypes.h"
|
|
#include "webrtc/base/sequenced_task_checker.h"
|
|
#include "webrtc/call.h"
|
|
#include "webrtc/modules/rtp_rtcp/include/flexfec_receiver.h"
|
|
#include "webrtc/modules/rtp_rtcp/include/ulpfec_receiver.h"
|
|
#include "webrtc/modules/rtp_rtcp/source/forward_error_correction.h"
|
|
#include "webrtc/system_wrappers/include/clock.h"
|
|
|
|
namespace webrtc {
|
|
|
|
// Callback interface for packets recovered by FlexFEC. The implementation
|
|
// should be able to demultiplex the recovered RTP packets based on SSRC.
|
|
class RecoveredPacketReceiver {
|
|
public:
|
|
virtual bool OnRecoveredPacket(const uint8_t* packet, size_t length) = 0;
|
|
|
|
protected:
|
|
virtual ~RecoveredPacketReceiver() = default;
|
|
};
|
|
|
|
class FlexfecReceiver {
|
|
public:
|
|
FlexfecReceiver(uint32_t ssrc,
|
|
uint32_t protected_media_ssrc,
|
|
RecoveredPacketReceiver* callback);
|
|
~FlexfecReceiver();
|
|
|
|
// Inserts a received packet (can be either media or FlexFEC) into the
|
|
// internal buffer, and sends the received packets to the erasure code.
|
|
// All newly recovered packets are sent back through the callback.
|
|
bool AddAndProcessReceivedPacket(const uint8_t* packet, size_t packet_length);
|
|
|
|
// Returns a counter describing the added and recovered packets.
|
|
FecPacketCounter GetPacketCounter() const;
|
|
|
|
private:
|
|
bool AddReceivedPacket(const uint8_t* packet, size_t packet_length);
|
|
bool ProcessReceivedPackets();
|
|
|
|
// Config.
|
|
const uint32_t ssrc_;
|
|
const uint32_t protected_media_ssrc_;
|
|
|
|
// Erasure code interfacing and callback.
|
|
std::unique_ptr<ForwardErrorCorrection> erasure_code_;
|
|
ForwardErrorCorrection::ReceivedPacketList received_packets_;
|
|
ForwardErrorCorrection::RecoveredPacketList recovered_packets_;
|
|
RecoveredPacketReceiver* const callback_;
|
|
|
|
// Logging and stats.
|
|
Clock* const clock_;
|
|
int64_t last_recovered_packet_ms_;
|
|
FecPacketCounter packet_counter_;
|
|
|
|
rtc::SequencedTaskChecker sequence_checker_;
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // WEBRTC_MODULES_RTP_RTCP_INCLUDE_FLEXFEC_RECEIVER_H_
|