blob: 9b12436e6695a3cad349ee1426a4abe541877251 [file] [log] [blame]
* Copyright (c) 2012 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 <vector>
#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
#include "webrtc/rtc_base/constructormagic.h"
#include "webrtc/rtc_base/criticalsection.h"
#include "webrtc/rtc_base/thread_annotations.h"
#include "webrtc/typedefs.h"
namespace webrtc {
class Clock;
class RtpPacketToSend;
class RtpPacketHistory {
static constexpr size_t kMaxCapacity = 9600;
explicit RtpPacketHistory(Clock* clock);
void SetStorePacketsStatus(bool enable, uint16_t number_to_store);
bool StorePackets() const;
void PutRtpPacket(std::unique_ptr<RtpPacketToSend> packet,
StorageType type,
bool sent);
// Gets stored RTP packet corresponding to the input |sequence number|.
// Returns nullptr if packet is not found.
// |min_elapsed_time_ms| is the minimum time that must have elapsed since
// the last time the packet was resent (parameter is ignored if set to zero).
// If the packet is found but the minimum time has not elapsed, returns
// nullptr.
std::unique_ptr<RtpPacketToSend> GetPacketAndSetSendTime(
uint16_t sequence_number,
int64_t min_elapsed_time_ms,
bool retransmit);
std::unique_ptr<RtpPacketToSend> GetBestFittingPacket(
size_t packet_size) const;
bool HasRtpPacket(uint16_t sequence_number) const;
struct StoredPacket {
uint16_t sequence_number = 0;
int64_t send_time = 0;
StorageType storage_type = kDontRetransmit;
bool has_been_retransmitted = false;
std::unique_ptr<RtpPacketToSend> packet;
std::unique_ptr<RtpPacketToSend> GetPacket(int index) const
void Allocate(size_t number_to_store) RTC_EXCLUSIVE_LOCKS_REQUIRED(critsect_);
void Free() RTC_EXCLUSIVE_LOCKS_REQUIRED(critsect_);
bool FindSeqNum(uint16_t sequence_number, int* index) const
int FindBestFittingPacket(size_t size) const
Clock* clock_;
rtc::CriticalSection critsect_;
bool store_ RTC_GUARDED_BY(critsect_);
uint32_t prev_index_ RTC_GUARDED_BY(critsect_);
std::vector<StoredPacket> stored_packets_ RTC_GUARDED_BY(critsect_);
} // namespace webrtc