blob: c61fd0b0e7a9e9c17768bdb9d59b370b99eb31f5 [file] [log] [blame]
* Copyright (c) 2011 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.
* Class for storing RTP packets.
#include <vector>
#include "module_common_types.h"
#include "rtp_rtcp_defines.h"
#include "typedefs.h"
namespace webrtc {
class RtpRtcpClock;
class CriticalSectionWrapper;
class RTPPacketHistory {
RTPPacketHistory(RtpRtcpClock* clock);
void SetStorePacketsStatus(bool enable, uint16_t number_to_store);
bool StorePackets() const;
// Stores RTP packet.
int32_t PutRTPPacket(const uint8_t* packet,
uint16_t packet_length,
uint16_t max_packet_length,
StorageType type);
// Gets stored RTP packet corresponding to the input sequence number.
// The packet is copied to the buffer pointed to by ptr_rtp_packet.
// The rtp_packet_length should show the available buffer size.
// Returns true if packet is found.
// rtp_packet_length: returns the copied packet length on success.
// min_elapsed_time_ms: 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 elaped, no bytes are
// copied.
// stored_time_ms: returns the time when the packet was stored.
// type: returns the storage type set in PutRTPPacket.
bool GetRTPPacket(uint16_t sequence_number,
uint32_t min_elapsed_time_ms,
uint8_t* packet,
uint16_t* packet_length,
uint32_t* stored_time_ms,
StorageType* type) const;
bool HasRTPPacket(uint16_t sequence_number) const;
void UpdateResendTime(uint16_t sequence_number);
void Allocate(uint16_t number_to_store);
void Free();
void VerifyAndAllocatePacketLength(uint16_t packet_length);
bool FindSeqNum(uint16_t sequence_number, int32_t* index) const;
RtpRtcpClock& clock_;
CriticalSectionWrapper* critsect_;
bool store_;
uint32_t prev_index_;
uint16_t max_packet_length_;
std::vector<std::vector<uint8_t> > stored_packets_;
std::vector<uint16_t> stored_seq_nums_;
std::vector<uint16_t> stored_lengths_;
std::vector<uint32_t> stored_times_;
std::vector<uint32_t> stored_resend_times_;
std::vector<StorageType> stored_types_;
} // namespace webrtc