f31a47abdc
BUG= R=marpan@google.com Review URL: https://webrtc-codereview.appspot.com/2077004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@4614 4adac7df-926f-26a2-2b94-8c16560cd09d
71 lines
2.6 KiB
C++
71 lines
2.6 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 "webrtc/typedefs.h"
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namespace webrtc {
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// Used to estimate rolling average of packets per frame.
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static const float kFastConvergeMultiplier = 0.4f;
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static const float kNormalConvergeMultiplier = 0.2f;
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enum { kMaxNumberOfFrames = 300 };
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enum { kStartNumberOfFrames = 6 };
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enum { kMaxVideoDelayMs = 10000 };
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enum { kPacketsPerFrameMultiplier = 5 };
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enum { kFastConvergeThreshold = 5};
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enum VCMJitterBufferEnum {
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kMaxConsecutiveOldFrames = 60,
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kMaxConsecutiveOldPackets = 300,
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kMaxPacketsInSession = 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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kOutOfBoundsPacket = -7,
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kNotInitialized = -6,
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kOldPacket = -5,
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kGeneralError = -4,
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kFlushIndicator = -3, // Indicator that a flush has occurred.
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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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kCompleteSession = 3, // at least one layer in the frame complete.
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kDecodableSession = 4, // Frame incomplete, but ready to be decoded
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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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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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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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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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} // namespace webrtc
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#endif // WEBRTC_MODULES_VIDEO_CODING_JITTER_BUFFER_COMMON_H_
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