54999d411b
BUG=webrtc:5260 Review URL: https://codereview.webrtc.org/1453973005 Cr-Commit-Position: refs/heads/master@{#11044}
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
/*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_DLRR_H_
|
|
#define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_DLRR_H_
|
|
|
|
#include <vector>
|
|
|
|
#include "webrtc/base/basictypes.h"
|
|
|
|
namespace webrtc {
|
|
namespace rtcp {
|
|
|
|
// DLRR Report Block: Delay since the Last Receiver Report (RFC 3611).
|
|
class Dlrr {
|
|
public:
|
|
struct SubBlock {
|
|
// RFC 3611 4.5
|
|
uint32_t ssrc;
|
|
uint32_t last_rr;
|
|
uint32_t delay_since_last_rr;
|
|
};
|
|
|
|
static const uint8_t kBlockType = 5;
|
|
static const size_t kMaxNumberOfDlrrItems = 100;
|
|
|
|
Dlrr() {}
|
|
Dlrr(const Dlrr& other) = default;
|
|
~Dlrr() {}
|
|
|
|
Dlrr& operator=(const Dlrr& other) = default;
|
|
|
|
// 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;
|
|
|
|
// Max 100 DLRR Items can be added per DLRR report block.
|
|
bool WithDlrrItem(uint32_t ssrc, uint32_t last_rr, uint32_t delay_last_rr);
|
|
|
|
const std::vector<SubBlock>& sub_blocks() const { return sub_blocks_; }
|
|
|
|
private:
|
|
static const size_t kBlockHeaderLength = 4;
|
|
static const size_t kSubBlockLength = 12;
|
|
|
|
std::vector<SubBlock> sub_blocks_;
|
|
};
|
|
} // namespace rtcp
|
|
} // namespace webrtc
|
|
#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_DLRR_H_
|