2d821c3cbc
This CL allows for FEC protection of packets with VideoTimingExtension by zero-ing out data, which is changed after FEC protection is generated (i.e in the pacer or by the SFU). Actual FEC protection of these packets would be enabled later, when all modern receivers have this change. Bug: webrtc:10750 Change-Id: If4785392204d68cb8527629727b5c062f9fb6600 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/143760 Reviewed-by: Niels Moller <nisse@webrtc.org> Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28396}
64 lines
2.3 KiB
C++
64 lines
2.3 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_RTP_RTCP_SOURCE_ULPFEC_RECEIVER_IMPL_H_
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#define MODULES_RTP_RTCP_SOURCE_ULPFEC_RECEIVER_IMPL_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <memory>
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#include <vector>
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#include "api/rtp_headers.h"
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#include "modules/rtp_rtcp/include/rtp_header_extension_map.h"
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#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
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#include "modules/rtp_rtcp/include/ulpfec_receiver.h"
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#include "modules/rtp_rtcp/source/forward_error_correction.h"
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#include "rtc_base/critical_section.h"
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namespace webrtc {
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class UlpfecReceiverImpl : public UlpfecReceiver {
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public:
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explicit UlpfecReceiverImpl(uint32_t ssrc,
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RecoveredPacketReceiver* callback,
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rtc::ArrayView<const RtpExtension> extensions);
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~UlpfecReceiverImpl() override;
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int32_t AddReceivedRedPacket(const RTPHeader& rtp_header,
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const uint8_t* incoming_rtp_packet,
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size_t packet_length,
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uint8_t ulpfec_payload_type) override;
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int32_t ProcessReceivedFec() override;
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FecPacketCounter GetPacketCounter() const override;
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private:
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const uint32_t ssrc_;
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const RtpHeaderExtensionMap extensions_;
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rtc::CriticalSection crit_sect_;
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RecoveredPacketReceiver* recovered_packet_callback_;
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std::unique_ptr<ForwardErrorCorrection> fec_;
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// TODO(nisse): The AddReceivedRedPacket method adds one or two packets to
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// this list at a time, after which it is emptied by ProcessReceivedFec. It
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// will make things simpler to merge AddReceivedRedPacket and
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// ProcessReceivedFec into a single method, and we can then delete this list.
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std::vector<std::unique_ptr<ForwardErrorCorrection::ReceivedPacket>>
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received_packets_;
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ForwardErrorCorrection::RecoveredPacketList recovered_packets_;
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FecPacketCounter packet_counter_;
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};
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} // namespace webrtc
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#endif // MODULES_RTP_RTCP_SOURCE_ULPFEC_RECEIVER_IMPL_H_
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