blob: ad91dfdcc6dedede887f5597d2d22833a9235949 [file] [log] [blame]
* Copyright (c) 2015 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 <stddef.h>
#include <stdint.h>
#include <vector>
namespace webrtc {
namespace rtcp {
struct ReceiveTimeInfo {
// RFC 3611 4.5
ReceiveTimeInfo() : ssrc(0), last_rr(0), delay_since_last_rr(0) {}
ReceiveTimeInfo(uint32_t ssrc, uint32_t last_rr, uint32_t delay)
: ssrc(ssrc), last_rr(last_rr), delay_since_last_rr(delay) {}
uint32_t ssrc;
uint32_t last_rr;
uint32_t delay_since_last_rr;
inline bool operator==(const ReceiveTimeInfo& lhs, const ReceiveTimeInfo& rhs) {
return lhs.ssrc == rhs.ssrc && lhs.last_rr == rhs.last_rr &&
lhs.delay_since_last_rr == rhs.delay_since_last_rr;
inline bool operator!=(const ReceiveTimeInfo& lhs, const ReceiveTimeInfo& rhs) {
return !(lhs == rhs);
// DLRR Report Block: Delay since the Last Receiver Report (RFC 3611).
class Dlrr {
static const uint8_t kBlockType = 5;
Dlrr(const Dlrr& other);
Dlrr& operator=(const Dlrr& other) = default;
// Dlrr without items treated same as no dlrr block.
explicit operator bool() const { return !sub_blocks_.empty(); }
// Second parameter is value read from block header,
// i.e. size of block in 32bits excluding block header itself.
bool Parse(const uint8_t* buffer, uint16_t block_length_32bits);
size_t BlockLength() const;
// Fills buffer with the Dlrr.
// Consumes BlockLength() bytes.
void Create(uint8_t* buffer) const;
void ClearItems() { sub_blocks_.clear(); }
void AddDlrrItem(const ReceiveTimeInfo& time_info) {
const std::vector<ReceiveTimeInfo>& sub_blocks() const { return sub_blocks_; }
static const size_t kBlockHeaderLength = 4;
static const size_t kSubBlockLength = 12;
std::vector<ReceiveTimeInfo> sub_blocks_;
} // namespace rtcp
} // namespace webrtc