webrtc_m130/webrtc/modules/rtp_rtcp/source/flexfec_receiver_impl.h
brandtr a8b38559a5 Add a FlexfecReceiver class.
This class is split in interface/implementation classes, since it
will be referenced from the Call level. Its purpose is to interface
the erasure code decoder with a new class FlexfecReceiveStream
(for received packets), as well as with the main RTP pipeline (for
recovered packets).

BUG=webrtc:5654

Review-Url: https://codereview.webrtc.org/2392663006
Cr-Commit-Position: refs/heads/master@{#14594}
2016-10-10 23:45:04 +00:00

61 lines
2.0 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_SOURCE_FLEXFEC_RECEIVER_IMPL_H_
#define WEBRTC_MODULES_RTP_RTCP_SOURCE_FLEXFEC_RECEIVER_IMPL_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/source/forward_error_correction.h"
#include "webrtc/system_wrappers/include/clock.h"
namespace webrtc {
class FlexfecReceiverImpl : public FlexfecReceiver {
public:
FlexfecReceiverImpl(uint32_t flexfec_ssrc,
uint32_t protected_media_ssrc,
RecoveredPacketReceiver* callback);
~FlexfecReceiverImpl();
// Implements FlexfecReceiver.
bool AddAndProcessReceivedPacket(const uint8_t* packet, size_t packet_length);
FecPacketCounter GetPacketCounter() const;
private:
bool AddReceivedPacket(const uint8_t* packet, size_t packet_length);
bool ProcessReceivedPackets();
// Config.
const uint32_t flexfec_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_SOURCE_FLEXFEC_RECEIVER_IMPL_H_