fcf54bdabb
VideoSender." The original Cl is uploaded as patch set 1, the fix in ps#2 and I'll rebase in ps#3. BUG=4534 R=pbos@webrtc.org Review URL: https://webrtc-codereview.appspot.com/46769004 Cr-Commit-Position: refs/heads/master@{#9000}
89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_PRODUCER_FEC_H_
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#define WEBRTC_MODULES_RTP_RTCP_SOURCE_PRODUCER_FEC_H_
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#include <list>
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#include <vector>
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#include "webrtc/modules/rtp_rtcp/source/forward_error_correction.h"
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namespace webrtc {
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struct RtpPacket;
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class RedPacket {
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public:
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explicit RedPacket(size_t length);
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~RedPacket();
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void CreateHeader(const uint8_t* rtp_header, size_t header_length,
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int red_pl_type, int pl_type);
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void SetSeqNum(int seq_num);
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void AssignPayload(const uint8_t* payload, size_t length);
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void ClearMarkerBit();
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uint8_t* data() const;
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size_t length() const;
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private:
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uint8_t* data_;
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size_t length_;
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size_t header_length_;
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};
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class ProducerFec {
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public:
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explicit ProducerFec(ForwardErrorCorrection* fec);
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~ProducerFec();
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void SetFecParameters(const FecProtectionParams* params,
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int max_fec_frames);
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// The caller is expected to delete the memory when done.
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RedPacket* BuildRedPacket(const uint8_t* data_buffer,
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size_t payload_length,
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size_t rtp_header_length,
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int red_pl_type);
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int AddRtpPacketAndGenerateFec(const uint8_t* data_buffer,
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size_t payload_length,
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size_t rtp_header_length);
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bool ExcessOverheadBelowMax();
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bool MinimumMediaPacketsReached();
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bool FecAvailable() const;
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size_t NumAvailableFecPackets() const;
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// GetFecPackets allocates memory and creates FEC packets, but the caller is
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// assumed to delete the memory when done with the packets.
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std::vector<RedPacket*> GetFecPackets(int red_pl_type,
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int fec_pl_type,
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uint16_t first_seq_num,
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size_t rtp_header_length);
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private:
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void DeletePackets();
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int Overhead() const;
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ForwardErrorCorrection* fec_;
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std::list<ForwardErrorCorrection::Packet*> media_packets_fec_;
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std::list<ForwardErrorCorrection::Packet*> fec_packets_;
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int num_frames_;
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int num_first_partition_;
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int minimum_media_packets_fec_;
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FecProtectionParams params_;
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FecProtectionParams new_params_;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_PRODUCER_FEC_H_
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