blob: 6cbae52c99f69d7add72b21061aaa8bc2f6c290a [file] [log] [blame]
* Copyright (c) 2013 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.
#include <memory>
#include "api/array_view.h"
#include "api/rtp_parameters.h"
#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
#include "modules/rtp_rtcp/source/rtp_packet_received.h"
namespace webrtc {
struct FecPacketCounter {
FecPacketCounter() = default;
size_t num_packets = 0; // Number of received packets.
size_t num_bytes = 0;
size_t num_fec_packets = 0; // Number of received FEC packets.
size_t num_recovered_packets =
0; // Number of recovered media packets using FEC.
int64_t first_packet_time_ms = -1; // Time when first packet is received.
class UlpfecReceiver {
static std::unique_ptr<UlpfecReceiver> Create(
uint32_t ssrc,
RecoveredPacketReceiver* callback,
rtc::ArrayView<const RtpExtension> extensions);
virtual ~UlpfecReceiver() {}
// Takes a RED packet, strips the RED header, and adds the resulting
// "virtual" RTP packet(s) into the internal buffer.
// TODO(brandtr): Set `ulpfec_payload_type` during constructor call,
// rather than as a parameter here.
virtual bool AddReceivedRedPacket(const RtpPacketReceived& rtp_packet,
uint8_t ulpfec_payload_type) = 0;
// Sends the received packets to the FEC and returns all packets
// (both original media and recovered) through the callback.
virtual int32_t ProcessReceivedFec() = 0;
// Returns a counter describing the added and recovered packets.
virtual FecPacketCounter GetPacketCounter() const = 0;
virtual void SetRtpExtensions(
rtc::ArrayView<const RtpExtension> extensions) = 0;
} // namespace webrtc