17705a9c5a
git-svn-id: http://webrtc.googlecode.com/svn/trunk@74 4adac7df-926f-26a2-2b94-8c16560cd09d
97 lines
3.1 KiB
C++
97 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_RECEIVER_H_
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#define WEBRTC_MODULES_VIDEO_CODING_RECEIVER_H_
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#include "critical_section_wrapper.h"
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#include "jitter_buffer.h"
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#include "timing.h"
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#include "packet.h"
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namespace webrtc
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{
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class VCMEncodedFrame;
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enum VCMNackStatus
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{
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kNackOk,
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kNackNeedMoreMemory,
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kNackKeyFrameRequest
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};
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enum VCMReceiverState
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{
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kReceiving,
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kPassive,
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kWaitForPrimaryDecode
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};
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class VCMReceiver
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{
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public:
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VCMReceiver(VCMTiming& timing,
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WebRtc_Word32 vcmId = -1,
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WebRtc_Word32 receiverId = -1,
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bool master = true);
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~VCMReceiver();
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WebRtc_Word32 Initialize();
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void UpdateRtt(WebRtc_UWord32 rtt);
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WebRtc_Word32 InsertPacket(const VCMPacket& packet,
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WebRtc_UWord16 frameWidth,
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WebRtc_UWord16 frameHeight);
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VCMEncodedFrame* FrameForDecoding(WebRtc_UWord16 maxWaitTimeMs,
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WebRtc_Word64& nextRenderTimeMs,
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bool renderTiming = true,
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VCMReceiver* dualReceiver = NULL);
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void ReleaseFrame(VCMEncodedFrame* frame);
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WebRtc_Word32 ReceiveStatistics(WebRtc_UWord32& bitRate, WebRtc_UWord32& frameRate);
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WebRtc_Word32 ReceivedFrameCount(VCMFrameCount& frameCount) const;
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// NACK
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void SetNackMode(VCMNackMode nackMode);
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VCMNackMode NackMode() const;
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VCMNackStatus NackList(WebRtc_UWord16* nackList, WebRtc_UWord16& size);
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// Dual decoder
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bool DualDecoderCaughtUp(VCMEncodedFrame* dualFrame, VCMReceiver& dualReceiver) const;
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VCMReceiverState State() const;
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private:
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VCMEncodedFrame* FrameForDecoding(WebRtc_UWord16 maxWaitTimeMs,
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WebRtc_Word64 nextrenderTimeMs,
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VCMReceiver* dualReceiver);
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VCMEncodedFrame* FrameForRendering(WebRtc_UWord16 maxWaitTimeMs,
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WebRtc_Word64 nextrenderTimeMs,
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VCMReceiver* dualReceiver);
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void CopyJitterBufferStateFromReceiver(const VCMReceiver& receiver);
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void UpdateState(VCMReceiverState newState);
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void UpdateState(VCMEncodedFrame& frame);
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static WebRtc_Word32 GenerateReceiverId();
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CriticalSectionWrapper& _critSect;
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WebRtc_Word32 _vcmId;
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WebRtc_Word32 _receiverId;
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bool _master;
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VCMJitterBuffer _jitterBuffer;
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VCMTiming& _timing;
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VCMEvent& _renderWaitEvent;
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VCMReceiverState _state;
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static WebRtc_Word32 _receiverIdCounter;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_VIDEO_CODING_RECEIVER_H_
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