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
83 lines
3.1 KiB
C++
83 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_JITTER_BUFFER_COMMON_H_
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#define WEBRTC_MODULES_VIDEO_CODING_JITTER_BUFFER_COMMON_H_
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#include "typedefs.h"
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namespace webrtc
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{
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enum { kMaxNumberOfFrames = 100 };
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enum { kStartNumberOfFrames = 6 }; // in packets, 6 packets are approximately 198 ms,
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// we need at least one more for process
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enum { kMaxVideoDelayMs = 2000 }; // in ms
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enum VCMJitterBufferEnum
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{
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kMaxConsecutiveOldFrames = 60,
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kMaxConsecutiveOldPackets = 300,
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kMaxPacketsInJitterBuffer = 800,
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kBufferIncStepSizeBytes = 30000, // >20 packets
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kMaxJBFrameSizeBytes = 4000000 // sanity don't go above 4Mbyte
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};
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enum VCMFrameBufferEnum
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{
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kStateError = -4,
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kTimeStampError = -2,
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kSizeError = -1,
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kNoError = 0,
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kIncomplete = 1, // Frame incomplete
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kFirstPacket = 2,
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kCompleteSession = 3, // at least one layer in the frame complete
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kDuplicatePacket = 5 // We're receiving a duplicate packet.
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};
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enum VCMFrameBufferStateEnum
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{
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kStateFree, // Unused frame in the JB
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kStateEmpty, // frame popped by the RTP receiver
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kStateIncomplete, // frame that have one or more packet(s) stored
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kStateComplete, // frame that have all packets
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kStateDecoding, // frame popped by the decoding thread
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kStateDecodable // Hybrid mode - frame can be decoded
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};
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enum { kH264StartCodeLengthBytes = 4};
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// Used to indicate if a received packet contain a complete NALU (or equivalent)
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enum VCMNaluCompleteness
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{
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kNaluUnset = 0, //Packet has not been filled.
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kNaluComplete = 1, //Packet can be decoded as is.
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kNaluStart, // Packet contain beginning of NALU
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kNaluIncomplete, //Packet is not beginning or end of NALU
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kNaluEnd, // Packet is the end of a NALU
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};
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// Returns the latest of the two timestamps, compensating for wrap arounds.
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// This function assumes that the two timestamps are close in time.
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WebRtc_UWord32 LatestTimestamp(WebRtc_UWord32 timestamp1,
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WebRtc_UWord32 timestamp2,
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bool* has_wrapped);
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// Returns the latest of the two sequence numbers, compensating for wrap
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// arounds. This function assumes that the two sequence numbers are close in
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// time.
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WebRtc_Word32 LatestSequenceNumber(WebRtc_Word32 seq_num1,
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WebRtc_Word32 seq_num2,
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bool* has_wrapped);
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} // namespace webrtc
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#endif // WEBRTC_MODULES_VIDEO_CODING_JITTER_BUFFER_COMMON_H_
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