a048d7cb0a
BUG=1662 R=stefan@webrtc.org Review URL: https://webrtc-codereview.appspot.com/1557004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@4135 4adac7df-926f-26a2-2b94-8c16560cd09d
85 lines
2.4 KiB
C++
85 lines
2.4 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 "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(int length);
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~RedPacket();
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void CreateHeader(const uint8_t* rtp_header, int 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, int length);
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void ClearMarkerBit();
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uint8_t* data() const;
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int length() const;
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private:
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uint8_t* data_;
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int length_;
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int 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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RedPacket* BuildRedPacket(const uint8_t* data_buffer,
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int payload_length,
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int 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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int payload_length,
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int 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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RedPacket* GetFecPacket(int red_pl_type,
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int fec_pl_type,
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uint16_t seq_num,
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int 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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bool incomplete_frame_;
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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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