146 lines
5.1 KiB
C
146 lines
5.1 KiB
C
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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 WEBRTC_MEDIA_BASE_MEDIACONSTANTS_H_
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#define WEBRTC_MEDIA_BASE_MEDIACONSTANTS_H_
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#include <string>
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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 kDataCodecClockrate;
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extern const int kDataMaxBandwidth; // bps
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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 kRtxCodecName[];
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extern const char kRedCodecName[];
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extern const char kUlpfecCodecName[];
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// Codec parameters
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extern const char kCodecParamAssociatedPayloadType[];
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extern const char kOpusCodecName[];
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extern const char kIsacCodecName[];
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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 kCodecParamSctpProtocol[];
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extern const char kCodecParamSctpStreams[];
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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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// 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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// 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 kCodecParamPort[];
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// We put the data codec names here so callers of
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// DataEngine::CreateChannel don't have to import rtpdataengine.h or
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// sctpdataengine.h to get the codec names they want to pass in.
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extern const int kGoogleRtpDataCodecId;
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extern const char kGoogleRtpDataCodecName[];
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// TODO(pthatcher): Find an id that won't conflict with anything. On
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// the other hand, it really shouldn't matter since the id won't be
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// used on the wire.
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extern const int kGoogleSctpDataCodecId;
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extern const char kGoogleSctpDataCodecName[];
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extern const char kComfortNoiseCodecName[];
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extern const char kVp8CodecName[];
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extern const char kVp9CodecName[];
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extern const char kH264CodecName[];
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// RFC 6184 RTP Payload Format for H.264 video
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extern const char kH264FmtpProfileLevelId[];
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extern const char kH264FmtpLevelAsymmetryAllowed[];
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extern const char kH264FmtpPacketizationMode[];
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extern const char kH264ProfileLevelConstrainedBaseline[];
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extern const int kDefaultVp8PlType;
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extern const int kDefaultVp9PlType;
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extern const int kDefaultH264PlType;
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extern const int kDefaultRedPlType;
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extern const int kDefaultUlpfecType;
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extern const int kDefaultRtxVp8PlType;
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extern const int kDefaultRtxVp9PlType;
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extern const int kDefaultRtxRedPlType;
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extern const int kDefaultRtxH264PlType;
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extern const int kDefaultVideoMaxWidth;
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extern const int kDefaultVideoMaxHeight;
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extern const int kDefaultVideoMaxFramerate;
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} // namespace cricket
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#endif // WEBRTC_MEDIA_BASE_MEDIACONSTANTS_H_
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