| /* |
| * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #ifndef WEBRTC_MODULES_VIDEO_CODING_JITTER_BUFFER_COMMON_H_ |
| #define WEBRTC_MODULES_VIDEO_CODING_JITTER_BUFFER_COMMON_H_ |
| |
| #include "webrtc/typedefs.h" |
| |
| namespace webrtc { |
| |
| // Used to estimate rolling average of packets per frame. |
| static const float kFastConvergeMultiplier = 0.4f; |
| static const float kNormalConvergeMultiplier = 0.2f; |
| |
| enum { kMaxNumberOfFrames = 300 }; |
| enum { kStartNumberOfFrames = 6 }; |
| enum { kMaxVideoDelayMs = 10000 }; |
| enum { kPacketsPerFrameMultiplier = 5 }; |
| enum { kFastConvergeThreshold = 5}; |
| |
| enum VCMJitterBufferEnum { |
| kMaxConsecutiveOldFrames = 60, |
| kMaxConsecutiveOldPackets = 300, |
| // TODO(sprang): Reduce this limit once codecs don't sometimes wildly |
| // overshoot bitrate target. |
| kMaxPacketsInSession = 1400, // Allows ~2MB frames. |
| kBufferIncStepSizeBytes = 30000, // >20 packets. |
| kMaxJBFrameSizeBytes = 4000000 // sanity don't go above 4Mbyte. |
| }; |
| |
| enum VCMFrameBufferEnum { |
| kOutOfBoundsPacket = -7, |
| kNotInitialized = -6, |
| kOldPacket = -5, |
| kGeneralError = -4, |
| kFlushIndicator = -3, // Indicator that a flush has occurred. |
| kTimeStampError = -2, |
| kSizeError = -1, |
| kNoError = 0, |
| kIncomplete = 1, // Frame incomplete. |
| kCompleteSession = 3, // at least one layer in the frame complete. |
| kDecodableSession = 4, // Frame incomplete, but ready to be decoded |
| kDuplicatePacket = 5 // We're receiving a duplicate packet. |
| }; |
| |
| enum VCMFrameBufferStateEnum { |
| kStateEmpty, // frame popped by the RTP receiver |
| kStateIncomplete, // frame that have one or more packet(s) stored |
| kStateComplete, // frame that have all packets |
| kStateDecodable // Hybrid mode - frame can be decoded |
| }; |
| |
| enum { kH264StartCodeLengthBytes = 4}; |
| |
| // Used to indicate if a received packet contain a complete NALU (or equivalent) |
| enum VCMNaluCompleteness { |
| kNaluUnset = 0, // Packet has not been filled. |
| kNaluComplete = 1, // Packet can be decoded as is. |
| kNaluStart, // Packet contain beginning of NALU |
| kNaluIncomplete, // Packet is not beginning or end of NALU |
| kNaluEnd, // Packet is the end of a NALU |
| }; |
| } // namespace webrtc |
| |
| #endif // WEBRTC_MODULES_VIDEO_CODING_JITTER_BUFFER_COMMON_H_ |