df9bbbee56
git-svn-id: http://webrtc.googlecode.com/svn/trunk@6498 4adac7df-926f-26a2-2b94-8c16560cd09d
142 lines
5.5 KiB
C++
142 lines
5.5 KiB
C++
/*
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* libjingle
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* Copyright 2012 Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TALK_MEDIA_BASE_CONSTANTS_H_
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#define TALK_MEDIA_BASE_CONSTANTS_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 int kWildcardPayloadType;
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extern const char kCodecParamAssociatedPayloadType[];
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extern const char kOpusCodecName[];
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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 kCodecParamMaxAverageBitrate[];
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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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// 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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// 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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// Extension header for audio levels, as defined in
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// http://tools.ietf.org/html/draft-ietf-avtext-client-to-mixer-audio-level-03
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extern const int kRtpAudioLevelHeaderExtensionDefaultId;
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extern const char kRtpAudioLevelHeaderExtension[];
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// Extension header for RTP timestamp offset, see RFC 5450 for details:
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// http://tools.ietf.org/html/rfc5450
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extern const int kRtpTimestampOffsetHeaderExtensionDefaultId;
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extern const char kRtpTimestampOffsetHeaderExtension[];
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// Extension header for absolute send time, see url for details:
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// http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
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extern const int kRtpAbsoluteSenderTimeHeaderExtensionDefaultId;
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extern const char kRtpAbsoluteSenderTimeHeaderExtension[];
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extern const int kNumDefaultUnsignalledVideoRecvStreams;
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} // namespace cricket
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#endif // TALK_MEDIA_BASE_CONSTANTS_H_
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