59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
/*
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* Copyright (c) 2013 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_INCLUDE_ULPFEC_RECEIVER_H_
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#define MODULES_RTP_RTCP_INCLUDE_ULPFEC_RECEIVER_H_
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#include <memory>
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#include "api/array_view.h"
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#include "api/rtp_parameters.h"
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#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
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#include "modules/rtp_rtcp/source/rtp_packet_received.h"
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namespace webrtc {
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struct FecPacketCounter {
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FecPacketCounter() = default;
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size_t num_packets = 0; // Number of received packets.
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size_t num_bytes = 0;
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size_t num_fec_packets = 0; // Number of received FEC packets.
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size_t num_recovered_packets =
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0; // Number of recovered media packets using FEC.
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int64_t first_packet_time_ms = -1; // Time when first packet is received.
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};
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class UlpfecReceiver {
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public:
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static std::unique_ptr<UlpfecReceiver> Create(
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uint32_t ssrc,
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RecoveredPacketReceiver* callback,
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rtc::ArrayView<const RtpExtension> extensions);
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virtual ~UlpfecReceiver() {}
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// Takes a RED packet, strips the RED header, and adds the resulting
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// "virtual" RTP packet(s) into the internal buffer.
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//
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// TODO(brandtr): Set |ulpfec_payload_type| during constructor call,
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// rather than as a parameter here.
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virtual bool AddReceivedRedPacket(const RtpPacketReceived& rtp_packet,
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uint8_t ulpfec_payload_type) = 0;
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// Sends the received packets to the FEC and returns all packets
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// (both original media and recovered) through the callback.
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virtual int32_t ProcessReceivedFec() = 0;
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// Returns a counter describing the added and recovered packets.
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virtual FecPacketCounter GetPacketCounter() const = 0;
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};
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} // namespace webrtc
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#endif // MODULES_RTP_RTCP_INCLUDE_ULPFEC_RECEIVER_H_
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