blob: 383dc96114f35116cb186061717ca31642937988 [file] [log] [blame]
* 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.
#include <vector>
#include "modules/rtp_rtcp/source/rtcp_packet/psfb.h"
namespace webrtc {
namespace rtcp {
class CommonHeader;
// Full intra request (FIR) (RFC 5104).
class Fir : public Psfb {
static constexpr uint8_t kFeedbackMessageType = 4;
struct Request {
Request() : ssrc(0), seq_nr(0) {}
Request(uint32_t ssrc, uint8_t seq_nr) : ssrc(ssrc), seq_nr(seq_nr) {}
uint32_t ssrc;
uint8_t seq_nr;
Fir(const Fir& fir);
~Fir() override;
// Parse assumes header is already parsed and validated.
bool Parse(const CommonHeader& packet);
void AddRequestTo(uint32_t ssrc, uint8_t seq_num) {
items_.emplace_back(ssrc, seq_num);
const std::vector<Request>& requests() const { return items_; }
size_t BlockLength() const override;
bool Create(uint8_t* packet,
size_t* index,
size_t max_length,
PacketReadyCallback callback) const override;
static constexpr size_t kFciLength = 8;
// SSRC of media source is not used in FIR packet. Shadow base functions.
void SetMediaSsrc(uint32_t ssrc);
uint32_t media_ssrc() const;
std::vector<Request> items_;
} // namespace rtcp
} // namespace webrtc