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170
TMessagesProj/jni/voip/webrtc/media/base/media_constants.h
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TMessagesProj/jni/voip/webrtc/media/base/media_constants.h
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/*
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* Copyright (c) 2012 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 MEDIA_BASE_MEDIA_CONSTANTS_H_
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#define MEDIA_BASE_MEDIA_CONSTANTS_H_
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#include <stddef.h>
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#include "rtc_base/system/rtc_export.h"
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// This file contains constants related to media.
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namespace cricket {
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extern const int kVideoCodecClockrate;
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extern const int kVideoMtu;
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extern const int kVideoRtpSendBufferSize;
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extern const int kVideoRtpRecvBufferSize;
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// Default CPU thresholds.
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extern const float kHighSystemCpuThreshold;
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extern const float kLowSystemCpuThreshold;
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extern const float kProcessCpuThreshold;
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extern const char kRedCodecName[];
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extern const char kUlpfecCodecName[];
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extern const char kFlexfecCodecName[];
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extern const char kMultiplexCodecName[];
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extern const char kFlexfecFmtpRepairWindow[];
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extern const char kRtxCodecName[];
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extern const char kCodecParamRtxTime[];
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extern const char kCodecParamAssociatedPayloadType[];
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extern const char kCodecParamAssociatedCodecName[];
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extern const char kCodecParamNotInNameValueFormat[];
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extern const char kOpusCodecName[];
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extern const char kL16CodecName[];
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extern const char kG722CodecName[];
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extern const char kIlbcCodecName[];
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extern const char kPcmuCodecName[];
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extern const char kPcmaCodecName[];
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extern const char kCnCodecName[];
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extern const char kDtmfCodecName[];
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// Attribute parameters
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extern const char kCodecParamPTime[];
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extern const char kCodecParamMaxPTime[];
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// fmtp parameters
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extern const char kCodecParamMinPTime[];
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extern const char kCodecParamSPropStereo[];
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extern const char kCodecParamStereo[];
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extern const char kCodecParamUseInbandFec[];
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extern const char kCodecParamUseDtx[];
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extern const char kCodecParamMaxAverageBitrate[];
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extern const char kCodecParamMaxPlaybackRate[];
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extern const char kParamValueTrue[];
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// Parameters are stored as parameter/value pairs. For parameters who do not
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// have a value, `kParamValueEmpty` should be used as value.
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extern const char kParamValueEmpty[];
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// opus parameters.
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// Default value for maxptime according to
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// http://tools.ietf.org/html/draft-spittka-payload-rtp-opus-03
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extern const int kOpusDefaultMaxPTime;
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extern const int kOpusDefaultPTime;
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extern const int kOpusDefaultMinPTime;
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extern const int kOpusDefaultSPropStereo;
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extern const int kOpusDefaultStereo;
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extern const int kOpusDefaultUseInbandFec;
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extern const int kOpusDefaultUseDtx;
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extern const int kOpusDefaultMaxPlaybackRate;
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// Prefered values in this code base. Note that they may differ from the default
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// values in http://tools.ietf.org/html/draft-spittka-payload-rtp-opus-03
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// Only frames larger or equal to 10 ms are currently supported in this code
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// base.
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extern const int kPreferredMaxPTime;
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extern const int kPreferredMinPTime;
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extern const int kPreferredSPropStereo;
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extern const int kPreferredStereo;
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extern const int kPreferredUseInbandFec;
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extern const char kPacketizationParamRaw[];
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// rtcp-fb message in its first experimental stages. Documentation pending.
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extern const char kRtcpFbParamLntf[];
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// rtcp-fb messages according to RFC 4585
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extern const char kRtcpFbParamNack[];
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extern const char kRtcpFbNackParamPli[];
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// rtcp-fb messages according to
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// http://tools.ietf.org/html/draft-alvestrand-rmcat-remb-00
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extern const char kRtcpFbParamRemb[];
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// rtcp-fb messages according to
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// https://tools.ietf.org/html/draft-holmer-rmcat-transport-wide-cc-extensions-01
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extern const char kRtcpFbParamTransportCc[];
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// ccm submessages according to RFC 5104
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extern const char kRtcpFbParamCcm[];
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extern const char kRtcpFbCcmParamFir[];
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// Receiver reference time report
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// https://tools.ietf.org/html/rfc3611 section 4.4
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extern const char kRtcpFbParamRrtr[];
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// Google specific parameters
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extern const char kCodecParamMaxBitrate[];
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extern const char kCodecParamMinBitrate[];
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extern const char kCodecParamStartBitrate[];
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extern const char kCodecParamMaxQuantization[];
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extern const char kComfortNoiseCodecName[];
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RTC_EXPORT extern const char kVp8CodecName[];
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RTC_EXPORT extern const char kVp9CodecName[];
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RTC_EXPORT extern const char kAv1CodecName[];
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RTC_EXPORT extern const char kH264CodecName[];
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RTC_EXPORT extern const char kH265CodecName[];
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// RFC 6184 RTP Payload Format for H.264 video
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RTC_EXPORT extern const char kH264FmtpProfileLevelId[];
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RTC_EXPORT extern const char kH264FmtpLevelAsymmetryAllowed[];
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RTC_EXPORT extern const char kH264FmtpPacketizationMode[];
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extern const char kH264FmtpSpropParameterSets[];
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extern const char kH264FmtpSpsPpsIdrInKeyframe[];
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extern const char kH264ProfileLevelConstrainedBaseline[];
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extern const char kH264ProfileLevelConstrainedHigh[];
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// RFC 7798 RTP Payload Format for H.265 video.
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// According to RFC 7742, the sprop parameters MUST NOT be included
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// in SDP generated by WebRTC, so for H.265 we don't handle them, though
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// current H.264 implementation honors them when receiving
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// sprop-parameter-sets in SDP.
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RTC_EXPORT extern const char kH265FmtpProfileSpace[];
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RTC_EXPORT extern const char kH265FmtpTierFlag[];
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RTC_EXPORT extern const char kH265FmtpProfileId[];
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RTC_EXPORT extern const char kH265FmtpLevelId[];
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RTC_EXPORT extern const char kH265FmtpProfileCompatibilityIndicator[];
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RTC_EXPORT extern const char kH265FmtpInteropConstraints[];
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RTC_EXPORT extern const char kH265FmtpTxMode[];
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// draft-ietf-payload-vp9
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extern const char kVP9ProfileId[];
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// https://aomediacodec.github.io/av1-rtp-spec/
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extern const char kAv1FmtpProfile[];
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extern const char kAv1FmtpLevelIdx[];
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extern const char kAv1FmtpTier[];
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extern const int kDefaultVideoMaxFramerate;
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extern const int kDefaultVideoMaxQpVpx;
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extern const int kDefaultVideoMaxQpH26x;
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extern const size_t kConferenceMaxNumSpatialLayers;
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extern const size_t kConferenceMaxNumTemporalLayers;
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extern const size_t kConferenceDefaultNumTemporalLayers;
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extern const char kApplicationSpecificBandwidth[];
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extern const char kTransportSpecificBandwidth[];
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} // namespace cricket
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#endif // MEDIA_BASE_MEDIA_CONSTANTS_H_
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