4c059d87b3
Also fixes a couple of bugs related to sequence number wrap found while testing. BUG= TEST= Review URL: http://webrtc-codereview.appspot.com/218001 git-svn-id: http://webrtc.googlecode.com/svn/trunk@732 4adac7df-926f-26a2-2b94-8c16560cd09d
98 lines
3.1 KiB
C++
98 lines
3.1 KiB
C++
/*
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* Copyright (c) 2011 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_VIDEO_CODING_FRAME_BUFFER_H_
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#define WEBRTC_MODULES_VIDEO_CODING_FRAME_BUFFER_H_
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#include "typedefs.h"
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#include "module_common_types.h"
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#include "encoded_frame.h"
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#include "frame_list.h"
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#include "jitter_buffer_common.h"
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#include "session_info.h"
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namespace webrtc
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{
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class VCMFrameBuffer : public VCMEncodedFrame
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{
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public:
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VCMFrameBuffer();
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virtual ~VCMFrameBuffer();
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VCMFrameBuffer(VCMFrameBuffer& rhs);
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virtual void Reset();
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VCMFrameBufferEnum InsertPacket(const VCMPacket& packet,
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WebRtc_Word64 timeInMs);
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// State
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// Get current state of frame
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VCMFrameBufferStateEnum GetState() const;
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// Get current state and timestamp of frame
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VCMFrameBufferStateEnum GetState(WebRtc_UWord32& timeStamp) const;
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void SetState(VCMFrameBufferStateEnum state); // Set state of frame
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bool IsRetransmitted() const;
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bool IsSessionComplete() const;
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bool HaveLastPacket() const;
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bool ForceSetHaveLastPacket();
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// Makes sure the session contain a decodable stream.
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void MakeSessionDecodable();
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// Sequence numbers
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// Get lowest packet sequence number in frame
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WebRtc_Word32 GetLowSeqNum() const;
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// Get highest packet sequence number in frame
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WebRtc_Word32 GetHighSeqNum() const;
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// Set counted status (as counted by JB or not)
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void SetCountedFrame(bool frameCounted);
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bool GetCountedFrame() const;
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// NACK
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// Zero out all entries in list up to and including _lowSeqNum
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WebRtc_Word32 ZeroOutSeqNum(WebRtc_Word32* list, WebRtc_Word32 num);
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// Hybrid extension: only NACK important packets, discard FEC packets
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WebRtc_Word32 ZeroOutSeqNumHybrid(WebRtc_Word32* list,
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WebRtc_Word32 num,
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float rttScore);
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void IncrementNackCount();
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WebRtc_Word16 GetNackCount() const;
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WebRtc_Word64 LatestPacketTimeMs();
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webrtc::FrameType FrameType() const;
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void SetPreviousFrameLoss();
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WebRtc_Word32 ExtractFromStorage(const EncodedVideoData& frameFromStorage);
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// The number of packets discarded because the decoder can't make use of
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// them.
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int NotDecodablePackets() const;
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protected:
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void RestructureFrameInformation();
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void PrepareForDecode();
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private:
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VCMFrameBufferStateEnum _state; // Current state of the frame
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bool _frameCounted; // Was this frame counted by JB?
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VCMSessionInfo _sessionInfo;
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WebRtc_UWord16 _nackCount;
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WebRtc_Word64 _latestPacketTimeMs;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_VIDEO_CODING_FRAME_BUFFER_H_
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